157743956 has 24 divisors (see below), whose sum is σ = 280546560. Its totient is φ = 77596992.

The previous prime is 157743893. The next prime is 157743973. The reversal of 157743956 is 659347751.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 157743956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78395 + ... + 80381.

It is an arithmetic number, because the mean of its divisors is an integer number (11689440).

Almost surely, 2^157743956 is an apocalyptic number.

It is an amenable number.

157743956 is a deficient number, since it is larger than the sum of its proper divisors (122802604).

157743956 is a wasteful number, since it uses less digits than its factorization.

157743956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2301 counting only the distinct ones).

The product of its digits is 793800, while the sum is 47.

The square root of 157743956 is about 12559.6160769348. The cubic root of 157743956 is about 540.3198333927.

The spelling of 157743956 in words is "one hundred fifty-seven million, seven hundred forty-three thousand, nine hundred fifty-six".