157041945 has 12 divisors (see below), whose sum is σ = 272206116. Its totient is φ = 83755680.

The previous prime is 157041943. The next prime is 157041979. The reversal of 157041945 is 549140751.

157041945 is a `hidden beast` number, since 1 + 570 + 41 + 9 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18249984 + 138791961 = 4272^2 + 11781^2 .

It is not a de Polignac number, because 157041945 - 2¹ = 157041943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157041943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1744866 + ... + 1744955.

It is an arithmetic number, because the mean of its divisors is an integer number (22683843).

Almost surely, 2^157041945 is an apocalyptic number.

157041945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157041945 is a deficient number, since it is larger than the sum of its proper divisors (115164171).

157041945 is a wasteful number, since it uses less digits than its factorization.

157041945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489832 (or 3489829 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 157041945 is about 12531.6377620804. The cubic root of 157041945 is about 539.5171094601.

The spelling of 157041945 in words is "one hundred fifty-seven million, forty-one thousand, nine hundred forty-five".