61275970 has 24 divisors (see below), whose sum is σ = 128305404. Its totient is φ = 21008736.

The previous prime is 61275961. The next prime is 61276021. The reversal of 61275970 is 7957216.

It can be written as a sum of positive squares in 2 ways, for example, as 56836521 + 4439449 = 7539^2 + 2107^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62037 + ... + 63016.

Almost surely, 2^61275970 is an apocalyptic number.

61275970 is an abundant number, since it is smaller than the sum of its proper divisors (67029434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61275970 is a wasteful number, since it uses less digits than its factorization.

61275970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125074 (or 125067 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 61275970 is about 7827.8969078546. The cubic root of 61275970 is about 394.2424620117.

The spelling of 61275970 in words is "sixty-one million, two hundred seventy-five thousand, nine hundred seventy".