156422542 has 16 divisors (see below), whose sum is σ = 248828112. Its totient is φ = 73494400.

The previous prime is 156422537. The next prime is 156422543. The reversal of 156422542 is 245224651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156422543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20553 + ... + 27115.

It is an arithmetic number, because the mean of its divisors is an integer number (15551757).

Almost surely, 2^156422542 is an apocalyptic number.

156422542 is a deficient number, since it is larger than the sum of its proper divisors (92405570).

156422542 is a wasteful number, since it uses less digits than its factorization.

156422542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283.

The product of its digits is 19200, while the sum is 31.

The square root of 156422542 is about 12506.8997757238. The cubic root of 156422542 is about 538.8068558275.

The spelling of 156422542 in words is "one hundred fifty-six million, four hundred twenty-two thousand, five hundred forty-two".