155942315 has 4 divisors (see below), whose sum is σ = 187130784. Its totient is φ = 124753848.

The previous prime is 155942279. The next prime is 155942317. The reversal of 155942315 is 513249551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155942315 - 2¹² = 155938219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155942317) 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 3 ways as a sum of consecutive naturals, for example, 15594227 + ... + 15594236.

It is an arithmetic number, because the mean of its divisors is an integer number (46782696).

Almost surely, 2^155942315 is an apocalyptic number.

155942315 is a deficient number, since it is larger than the sum of its proper divisors (31188469).

155942315 is an equidigital number, since it uses as much as digits as its factorization.

155942315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31188468.

The product of its digits is 27000, while the sum is 35.

The square root of 155942315 is about 12487.6865351433. The cubic root of 155942315 is about 538.2549003320.

The spelling of 155942315 in words is "one hundred fifty-five million, nine hundred forty-two thousand, three hundred fifteen".