61213472 has 12 divisors (see below), whose sum is σ = 120514086. Its totient is φ = 30606720.

The previous prime is 61213457. The next prime is 61213483. The reversal of 61213472 is 27431216.

It can be written as a sum of positive squares in only one way, i.e., 52475536 + 8737936 = 7244^2 + 2956^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956429 + ... + 956492.

Almost surely, 2^61213472 is an apocalyptic number.

It is an amenable number.

61213472 is a deficient number, since it is larger than the sum of its proper divisors (59300614).

61213472 is a wasteful number, since it uses less digits than its factorization.

61213472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912931 (or 1912923 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 61213472 is about 7823.9038848902. The cubic root of 61213472 is about 394.1083814629.

Adding to 61213472 its reverse (27431216), we get a palindrome (88644688).

The spelling of 61213472 in words is "sixty-one million, two hundred thirteen thousand, four hundred seventy-two".