161169274 has 16 divisors (see below), whose sum is σ = 276470208. Its totient is φ = 69027552.

The previous prime is 161169271. The next prime is 161169311. The reversal of 161169274 is 472961161.

It is not an unprimeable number, because it can be changed into a prime (161169271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27469 + ... + 32815.

It is an arithmetic number, because the mean of its divisors is an integer number (17279388).

Almost surely, 2^161169274 is an apocalyptic number.

161169274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161169274 is a deficient number, since it is larger than the sum of its proper divisors (115300934).

161169274 is a wasteful number, since it uses less digits than its factorization.

161169274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509.

The product of its digits is 18144, while the sum is 37.

The square root of 161169274 is about 12695.2461181341. The cubic root of 161169274 is about 544.2027723217.

The spelling of 161169274 in words is "one hundred sixty-one million, one hundred sixty-nine thousand, two hundred seventy-four".