157649948 has 24 divisors (see below), whose sum is σ = 279547632. Its totient is φ = 77785344.

The previous prime is 157649941. The next prime is 157649953. The reversal of 157649948 is 849946751.

It is a super-2 number, since 2×157649948² = 49707012208805408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157649948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157649941) 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, 143690 + ... + 144782.

It is an arithmetic number, because the mean of its divisors is an integer number (11647818).

Almost surely, 2^157649948 is an apocalyptic number.

It is an amenable number.

157649948 is a deficient number, since it is larger than the sum of its proper divisors (121897684).

157649948 is a wasteful number, since it uses less digits than its factorization.

157649948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541 (or 1539 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 157649948 is about 12555.8730480998. The cubic root of 157649948 is about 540.2124769698.

The spelling of 157649948 in words is "one hundred fifty-seven million, six hundred forty-nine thousand, nine hundred forty-eight".