3155420236 has 12 divisors (see below), whose sum is σ = 5671228528. Its totient is φ = 1535069232.

The previous prime is 3155420221. The next prime is 3155420237. The reversal of 3155420236 is 6320245513.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3155420198 and 3155420207.

It is not an unprimeable number, because it can be changed into a prime (3155420237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10660056 + ... + 10660351.

Almost surely, 2^3155420236 is an apocalyptic number.

It is an amenable number.

3155420236 is a deficient number, since it is larger than the sum of its proper divisors (2515808292).

3155420236 is a wasteful number, since it uses less digits than its factorization.

3155420236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21320448 (or 21320446 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 3155420236 is about 56173.1273475138. The cubic root of 3155420236 is about 1466.7375216688.

Adding to 3155420236 its reverse (6320245513), we get a palindrome (9475665749).

The spelling of 3155420236 in words is "three billion, one hundred fifty-five million, four hundred twenty thousand, two hundred thirty-six".