272458561 has 4 divisors (see below), whose sum is σ = 274604032. Its totient is φ = 270313092.

The previous prime is 272458559. The next prime is 272458583. The reversal of 272458561 is 165854272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 272458561 - 2¹ = 272458559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272458591) 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, 1072545 + ... + 1072798.

It is an arithmetic number, because the mean of its divisors is an integer number (68651008).

Almost surely, 2^272458561 is an apocalyptic number.

It is an amenable number.

272458561 is a deficient number, since it is larger than the sum of its proper divisors (2145471).

272458561 is a wasteful number, since it uses less digits than its factorization.

272458561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145470.

The product of its digits is 134400, while the sum is 40.

The square root of 272458561 is about 16506.3188203791. The cubic root of 272458561 is about 648.2862635840.

The spelling of 272458561 in words is "two hundred seventy-two million, four hundred fifty-eight thousand, five hundred sixty-one".