1201543014 has 72 divisors (see below), whose sum is σ = 2950558488. Its totient is φ = 325200960.

The previous prime is 1201542973. The next prime is 1201543037. The reversal of 1201543014 is 4103451021.

It is a super-2 number, since 2×1201543014² = 2887411228984408392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100474 + ... + 111794.

It is an arithmetic number, because the mean of its divisors is an integer number (40979979).

Almost surely, 2^1201543014 is an apocalyptic number.

1201543014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201543014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475279244).

1201543014 is an abundant number, since it is smaller than the sum of its proper divisors (1749015474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201543014 is a wasteful number, since it uses less digits than its factorization.

1201543014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11378 (or 11352 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1201543014 is about 34663.2804852628. The cubic root of 1201543014 is about 1063.1138455027.

Adding to 1201543014 its reverse (4103451021), we get a palindrome (5304994035).

The spelling of 1201543014 in words is "one billion, two hundred one million, five hundred forty-three thousand, fourteen".