157643544 has 32 divisors (see below), whose sum is σ = 394470720. Its totient is φ = 52499616.

The previous prime is 157643531. The next prime is 157643557. The reversal of 157643544 is 445346751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157643531) and next prime (157643557).

It is a congruent number.

It is an unprimeable number.

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, 31947 + ... + 36549.

It is an arithmetic number, because the mean of its divisors is an integer number (12327210).

Almost surely, 2^157643544 is an apocalyptic number.

It is an amenable number.

157643544 is an abundant number, since it is smaller than the sum of its proper divisors (236827176).

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

157643544 is a wasteful number, since it uses less digits than its factorization.

157643544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6039 (or 6035 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 157643544 is about 12555.6180254100. The cubic root of 157643544 is about 540.2051620978.

The spelling of 157643544 in words is "one hundred fifty-seven million, six hundred forty-three thousand, five hundred forty-four".