169441131 has 4 divisors (see below), whose sum is σ = 225921512. Its totient is φ = 112960752.

The previous prime is 169441123. The next prime is 169441187. The reversal of 169441131 is 131144961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131144961 = 3 ⋅43714987.

It is not a de Polignac number, because 169441131 - 2³ = 169441123 is a prime.

It is a super-2 number, since 2×169441131² = 57420593749118322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169441121) 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, 28240186 + ... + 28240191.

It is an arithmetic number, because the mean of its divisors is an integer number (56480378).

Almost surely, 2^169441131 is an apocalyptic number.

169441131 is a deficient number, since it is larger than the sum of its proper divisors (56480381).

169441131 is an equidigital number, since it uses as much as digits as its factorization.

169441131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56480380.

The product of its digits is 2592, while the sum is 30.

The square root of 169441131 is about 13016.9555196290. The cubic root of 169441131 is about 553.3581115418.

The spelling of 169441131 in words is "one hundred sixty-nine million, four hundred forty-one thousand, one hundred thirty-one".