157258537 has 2 divisors, whose sum is σ = 157258538. Its totient is φ = 157258536.

The previous prime is 157258531. The next prime is 157258583. The reversal of 157258537 is 735852751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154032921 + 3225616 = 12411^2 + 1796^2 .

It is an emirp because it is prime and its reverse (735852751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157258537 - 2³ = 157258529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157258493 and 157258502.

It is not a weakly prime, because it can be changed into another prime (157258531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78629268 + 78629269.

It is an arithmetic number, because the mean of its divisors is an integer number (78629269).

Almost surely, 2^157258537 is an apocalyptic number.

It is an amenable number.

157258537 is a deficient number, since it is larger than the sum of its proper divisors (1).

157258537 is an equidigital number, since it uses as much as digits as its factorization.

157258537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294000, while the sum is 43.

The square root of 157258537 is about 12540.2765918460. The cubic root of 157258537 is about 539.7650292304.

The spelling of 157258537 in words is "one hundred fifty-seven million, two hundred fifty-eight thousand, five hundred thirty-seven".