161476131 has 4 divisors (see below), whose sum is σ = 215301512. Its totient is φ = 107650752.

The previous prime is 161476111. The next prime is 161476157. The reversal of 161476131 is 131674161.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 161476131 - 2⁹ = 161475619 is a prime.

It is a super-2 number, since 2×161476131² = 52149081765458322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161476111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26912686 + ... + 26912691.

It is an arithmetic number, because the mean of its divisors is an integer number (53825378).

Almost surely, 2^161476131 is an apocalyptic number.

161476131 is a deficient number, since it is larger than the sum of its proper divisors (53825381).

161476131 is an equidigital number, since it uses as much as digits as its factorization.

161476131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53825380.

The product of its digits is 3024, while the sum is 30.

The square root of 161476131 is about 12707.3258791927. The cubic root of 161476131 is about 544.5479302553.

The spelling of 161476131 in words is "one hundred sixty-one million, four hundred seventy-six thousand, one hundred thirty-one".