61574261 has 4 divisors (see below), whose sum is σ = 70370592. Its totient is φ = 52777932.

The previous prime is 61574213. The next prime is 61574263. The reversal of 61574261 is 16247516.

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 a de Polignac number, because none of the positive numbers 2^k-61574261 is a prime.

It is a super-2 number, since 2×61574261² = 7582779235392242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61574263) 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, 4398155 + ... + 4398168.

It is an arithmetic number, because the mean of its divisors is an integer number (17592648).

Almost surely, 2^61574261 is an apocalyptic number.

It is an amenable number.

61574261 is a deficient number, since it is larger than the sum of its proper divisors (8796331).

61574261 is an equidigital number, since it uses as much as digits as its factorization.

61574261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8796330.

The product of its digits is 10080, while the sum is 32.

The square root of 61574261 is about 7846.9268506849. The cubic root of 61574261 is about 394.8811499507.

The spelling of 61574261 in words is "sixty-one million, five hundred seventy-four thousand, two hundred sixty-one".