272453138 has 4 divisors (see below), whose sum is σ = 408679710. Its totient is φ = 136226568.

The previous prime is 272453131. The next prime is 272453183. The reversal of 272453138 is 831354272.

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

It can be written as a sum of positive squares in only one way, i.e., 221801449 + 50651689 = 14893^2 + 7117^2 .

It is a junction number, because it is equal to n+sod(n) for n = 272453098 and 272453107.

It is not an unprimeable number, because it can be changed into a prime (272453131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68113283 + ... + 68113286.

Almost surely, 2^272453138 is an apocalyptic number.

272453138 is a deficient number, since it is larger than the sum of its proper divisors (136226572).

272453138 is a wasteful number, since it uses less digits than its factorization.

272453138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136226571.

The product of its digits is 40320, while the sum is 35.

The square root of 272453138 is about 16506.1545491371. The cubic root of 272453138 is about 648.2819624042.

The spelling of 272453138 in words is "two hundred seventy-two million, four hundred fifty-three thousand, one hundred thirty-eight".