156234642 has 8 divisors (see below), whose sum is σ = 312469296. Its totient is φ = 52078212.

The previous prime is 156234599. The next prime is 156234643. The reversal of 156234642 is 246432651.

It is a sphenic number, since it is the product of 3 distinct primes.

156234642 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (156234643) 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, 13019548 + ... + 13019559.

It is an arithmetic number, because the mean of its divisors is an integer number (39058662).

Almost surely, 2^156234642 is an apocalyptic number.

156234642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

156234642 is a wasteful number, since it uses less digits than its factorization.

156234642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26039112.

The product of its digits is 34560, while the sum is 33.

The square root of 156234642 is about 12499.3856649037. The cubic root of 156234642 is about 538.5910250988.

The spelling of 156234642 in words is "one hundred fifty-six million, two hundred thirty-four thousand, six hundred forty-two".