156077742 has 16 divisors (see below), whose sum is σ = 328584960. Its totient is φ = 49287672.

The previous prime is 156077737. The next prime is 156077743. The reversal of 156077742 is 247770651.

It is a self number, because there is not a number n which added to its sum of digits gives 156077742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156077743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684438 + ... + 684665.

It is an arithmetic number, because the mean of its divisors is an integer number (20536560).

Almost surely, 2^156077742 is an apocalyptic number.

156077742 is an abundant number, since it is smaller than the sum of its proper divisors (172507218).

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

156077742 is a wasteful number, since it uses less digits than its factorization.

156077742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369127.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 156077742 is about 12493.1077798921. The cubic root of 156077742 is about 538.4106698016.

The spelling of 156077742 in words is "one hundred fifty-six million, seventy-seven thousand, seven hundred forty-two".