155313642 has 32 divisors (see below), whose sum is σ = 348030144. Its totient is φ = 45792000.

The previous prime is 155313637. The next prime is 155313643. The reversal of 155313642 is 246313551.

155313642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155313643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29359 + ... + 34242.

It is an arithmetic number, because the mean of its divisors is an integer number (10875942).

Almost surely, 2^155313642 is an apocalyptic number.

155313642 is an abundant number, since it is smaller than the sum of its proper divisors (192716502).

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

155313642 is a wasteful number, since it uses less digits than its factorization.

155313642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63654.

The product of its digits is 10800, while the sum is 30.

The square root of 155313642 is about 12462.4893981901. The cubic root of 155313642 is about 537.5306109843.

Subtracting 155313642 from its reverse (246313551), we obtain a palindrome (90999909).

The spelling of 155313642 in words is "one hundred fifty-five million, three hundred thirteen thousand, six hundred forty-two".