156609342 has 32 divisors (see below), whose sum is σ = 348429600. Its totient is φ = 52141824.

The previous prime is 156609331. The next prime is 156609359. The reversal of 156609342 is 243906651.

It is a happy number.

156609342 is a `hidden beast` number, since 1 + 5 + 6 + 609 + 3 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 156609297 and 156609306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90784 + ... + 92492.

It is an arithmetic number, because the mean of its divisors is an integer number (10888425).

Almost surely, 2^156609342 is an apocalyptic number.

156609342 is an abundant number, since it is smaller than the sum of its proper divisors (191820258).

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

156609342 is a wasteful number, since it uses less digits than its factorization.

156609342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417 (or 3411 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 156609342 is about 12514.3654253821. The cubic root of 156609342 is about 539.0212517852.

The spelling of 156609342 in words is "one hundred fifty-six million, six hundred nine thousand, three hundred forty-two".