161274464 has 24 divisors (see below), whose sum is σ = 341933760. Its totient is φ = 74434176.

The previous prime is 161274419. The next prime is 161274469. The reversal of 161274464 is 464472161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161274469) 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, 193424 + ... + 194255.

It is an arithmetic number, because the mean of its divisors is an integer number (14247240).

Almost surely, 2^161274464 is an apocalyptic number.

It is an amenable number.

161274464 is an abundant number, since it is smaller than the sum of its proper divisors (180659296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161274464 is a wasteful number, since it uses less digits than its factorization.

161274464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387702 (or 387694 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 161274464 is about 12699.3883317268. The cubic root of 161274464 is about 544.3211411207.

It can be divided in two parts, 161 and 274464, that added together give a cube (274625 = 65³).

The spelling of 161274464 in words is "one hundred sixty-one million, two hundred seventy-four thousand, four hundred sixty-four".