61112969 has 4 divisors (see below), whose sum is σ = 61155396. Its totient is φ = 61070544.

The previous prime is 61112963. The next prime is 61112971. The reversal of 61112969 is 96921116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36481600 + 24631369 = 6040^2 + 4963^2 .

It is a cyclic number.

It is not a de Polignac number, because 61112969 - 2²⁰ = 60064393 is a prime.

It is a super-2 number, since 2×61112969² = 7469589959989922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61112963) 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, 18974 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (15288849).

Almost surely, 2^61112969 is an apocalyptic number.

It is an amenable number.

61112969 is a deficient number, since it is larger than the sum of its proper divisors (42427).

61112969 is a wasteful number, since it uses less digits than its factorization.

61112969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42426.

The product of its digits is 5832, while the sum is 35.

The square root of 61112969 is about 7817.4784297752. The cubic root of 61112969 is about 393.8925750917.

The spelling of 61112969 in words is "sixty-one million, one hundred twelve thousand, nine hundred sixty-nine".