161265054 has 48 divisors (see below), whose sum is σ = 337432320. Its totient is φ = 51364800.

The previous prime is 161265031. The next prime is 161265059. The reversal of 161265054 is 450562161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161265059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594939 + ... + 595209.

It is an arithmetic number, because the mean of its divisors is an integer number (7029840).

Almost surely, 2^161265054 is an apocalyptic number.

161265054 is an abundant number, since it is smaller than the sum of its proper divisors (176167266).

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

161265054 is a wasteful number, since it uses less digits than its factorization.

161265054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 161265054 is about 12699.0178360376. The cubic root of 161265054 is about 544.3105542792.

It can be divided in two parts, 1612 and 65054, that added together give a palindrome (66666).

The spelling of 161265054 in words is "one hundred sixty-one million, two hundred sixty-five thousand, fifty-four".