157475161 has 4 divisors (see below), whose sum is σ = 157981824. Its totient is φ = 156968500.

The previous prime is 157475117. The next prime is 157475177. The reversal of 157475161 is 161574751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161574751 = 13 ⋅12428827.

It is a cyclic number.

It is not a de Polignac number, because 157475161 - 2⁷ = 157475033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157475161.

It is not an unprimeable number, because it can be changed into a prime (157475861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252865 + ... + 253486.

It is an arithmetic number, because the mean of its divisors is an integer number (39495456).

Almost surely, 2^157475161 is an apocalyptic number.

It is an amenable number.

157475161 is a deficient number, since it is larger than the sum of its proper divisors (506663).

157475161 is an equidigital number, since it uses as much as digits as its factorization.

157475161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506662.

The product of its digits is 29400, while the sum is 37.

The square root of 157475161 is about 12548.9107495432. The cubic root of 157475161 is about 540.0127580433.

The spelling of 157475161 in words is "one hundred fifty-seven million, four hundred seventy-five thousand, one hundred sixty-one".