157530547 has 2 divisors, whose sum is σ = 157530548. Its totient is φ = 157530546.

The previous prime is 157530533. The next prime is 157530553. The reversal of 157530547 is 745035751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157530547 - 2²⁷ = 23312819 is a prime.

It is not a weakly prime, because it can be changed into another prime (157530587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78765273 + 78765274.

It is an arithmetic number, because the mean of its divisors is an integer number (78765274).

Almost surely, 2^157530547 is an apocalyptic number.

157530547 is a deficient number, since it is larger than the sum of its proper divisors (1).

157530547 is an equidigital number, since it uses as much as digits as its factorization.

157530547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 157530547 is about 12551.1173606177. The cubic root of 157530547 is about 540.0760603882.

The spelling of 157530547 in words is "one hundred fifty-seven million, five hundred thirty thousand, five hundred forty-seven".