61274165 has 8 divisors (see below), whose sum is σ = 73803960. Its totient is φ = 48836032.

The previous prime is 61274149. The next prime is 61274173. The reversal of 61274165 is 56147216.

It can be written as a sum of positive squares in 4 ways, for example, as 27889 + 61246276 = 167^2 + 7826^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61274165 - 2⁴ = 61274149 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21434 + ... + 24123.

It is an arithmetic number, because the mean of its divisors is an integer number (9225495).

Almost surely, 2^61274165 is an apocalyptic number.

It is an amenable number.

61274165 is a deficient number, since it is larger than the sum of its proper divisors (12529795).

61274165 is a wasteful number, since it uses less digits than its factorization.

61274165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45831.

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

The square root of 61274165 is about 7827.7816142251. The cubic root of 61274165 is about 394.2385909203.

The spelling of 61274165 in words is "sixty-one million, two hundred seventy-four thousand, one hundred sixty-five".