157461523 has 4 divisors (see below), whose sum is σ = 157515280. Its totient is φ = 157407768.

The previous prime is 157461487. The next prime is 157461533. The reversal of 157461523 is 325164751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325164751 = 13147 ⋅24733.

It is a cyclic number.

It is not a de Polignac number, because 157461523 - 2¹⁷ = 157330451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157461533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22215 + ... + 28432.

It is an arithmetic number, because the mean of its divisors is an integer number (39378820).

Almost surely, 2^157461523 is an apocalyptic number.

157461523 is a deficient number, since it is larger than the sum of its proper divisors (53757).

157461523 is an equidigital number, since it uses as much as digits as its factorization.

157461523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53756.

The product of its digits is 25200, while the sum is 34.

The square root of 157461523 is about 12548.3673440014. The cubic root of 157461523 is about 539.9971684808.

The spelling of 157461523 in words is "one hundred fifty-seven million, four hundred sixty-one thousand, five hundred twenty-three".