61148970 has 24 divisors (see below), whose sum is σ = 158987556. Its totient is φ = 16306368.

The previous prime is 61148959. The next prime is 61148981. The reversal of 61148970 is 7984116.

61148970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61148959) and next prime (61148981).

It can be written as a sum of positive squares in 2 ways, for example, as 60233121 + 915849 = 7761^2 + 957^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339627 + ... + 339806.

Almost surely, 2^61148970 is an apocalyptic number.

61148970 is an abundant number, since it is smaller than the sum of its proper divisors (97838586).

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

61148970 is a wasteful number, since it uses less digits than its factorization.

61148970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679446 (or 679443 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 61148970 is about 7819.7806874618. The cubic root of 61148970 is about 393.9699058842.

The spelling of 61148970 in words is "sixty-one million, one hundred forty-eight thousand, nine hundred seventy".