1240201512 has 48 divisors (see below), whose sum is σ = 3664234080. Its totient is φ = 375818400.

The previous prime is 1240201499. The next prime is 1240201519. The reversal of 1240201512 is 2151020421.

It is a super-2 number, since 2×1240201512² = 3076199580734172288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1240201519) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 782164 + ... + 783747.

It is an arithmetic number, because the mean of its divisors is an integer number (76338210).

Almost surely, 2^1240201512 is an apocalyptic number.

1240201512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240201512 is an abundant number, since it is smaller than the sum of its proper divisors (2424032568).

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

1240201512 is a wasteful number, since it uses less digits than its factorization.

1240201512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565934 (or 1565927 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1240201512 is about 35216.4948852097. The cubic root of 1240201512 is about 1074.3952645604.

Adding to 1240201512 its reverse (2151020421), we get a palindrome (3391221933).

The spelling of 1240201512 in words is "one billion, two hundred forty million, two hundred one thousand, five hundred twelve".