1201240134 has 24 divisors (see below), whose sum is σ = 2603467152. Its totient is φ = 400293360.

The previous prime is 1201240087. The next prime is 1201240153. The reversal of 1201240134 is 4310421021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68272 + ... + 84044.

It is an arithmetic number, because the mean of its divisors is an integer number (108477798).

Almost surely, 2^1201240134 is an apocalyptic number.

1201240134 is an abundant number, since it is smaller than the sum of its proper divisors (1402227018).

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

1201240134 is a wasteful number, since it uses less digits than its factorization.

1201240134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20012 (or 20009 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1201240134 is about 34658.9113216212. The cubic root of 1201240134 is about 1063.0245095468.

Adding to 1201240134 its reverse (4310421021), we get a palindrome (5511661155).

The spelling of 1201240134 in words is "one billion, two hundred one million, two hundred forty thousand, one hundred thirty-four".