156216542 has 8 divisors (see below), whose sum is σ = 238296600. Its totient is φ = 76784344.

The previous prime is 156216521. The next prime is 156216559. The reversal of 156216542 is 245612651.

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

It is a junction number, because it is equal to n+sod(n) for n = 156216499 and 156216508.

It is a congruent number.

It is an unprimeable number.

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, 661817 + ... + 662052.

It is an arithmetic number, because the mean of its divisors is an integer number (29787075).

Almost surely, 2^156216542 is an apocalyptic number.

156216542 is a deficient number, since it is larger than the sum of its proper divisors (82080058).

156216542 is a wasteful number, since it uses less digits than its factorization.

156216542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323930.

The product of its digits is 14400, while the sum is 32.

The square root of 156216542 is about 12498.6616083483. The cubic root of 156216542 is about 538.5702254565.

The spelling of 156216542 in words is "one hundred fifty-six million, two hundred sixteen thousand, five hundred forty-two".