157497437 has 2 divisors, whose sum is σ = 157497438. Its totient is φ = 157497436.

The previous prime is 157497377. The next prime is 157497449. The reversal of 157497437 is 734794751.

157497437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153412996 + 4084441 = 12386^2 + 2021^2 .

It is a cyclic number.

It is not a de Polignac number, because 157497437 - 2²² = 153303133 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157497391 and 157497400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157497497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78748718 + 78748719.

It is an arithmetic number, because the mean of its divisors is an integer number (78748719).

Almost surely, 2^157497437 is an apocalyptic number.

It is an amenable number.

157497437 is a deficient number, since it is larger than the sum of its proper divisors (1).

157497437 is an equidigital number, since it uses as much as digits as its factorization.

157497437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 47.

The square root of 157497437 is about 12549.7982852315. The cubic root of 157497437 is about 540.0382197457.

The spelling of 157497437 in words is "one hundred fifty-seven million, four hundred ninety-seven thousand, four hundred thirty-seven".