157749692 has 6 divisors (see below), whose sum is σ = 276061968. Its totient is φ = 78874844.

The previous prime is 157749689. The next prime is 157749733. The reversal of 157749692 is 296947751.

157749692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 157749692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19718708 + ... + 19718715.

It is an arithmetic number, because the mean of its divisors is an integer number (46010328).

Almost surely, 2^157749692 is an apocalyptic number.

It is an amenable number.

157749692 is a deficient number, since it is larger than the sum of its proper divisors (118312276).

157749692 is a wasteful number, since it uses less digits than its factorization.

157749692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39437427 (or 39437425 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The square root of 157749692 is about 12559.8444257881. The cubic root of 157749692 is about 540.3263824804.

The spelling of 157749692 in words is "one hundred fifty-seven million, seven hundred forty-nine thousand, six hundred ninety-two".