61509114 has 12 divisors (see below), whose sum is σ = 133269786. Its totient is φ = 20503032.

The previous prime is 61509103. The next prime is 61509121. The reversal of 61509114 is 41190516.

It can be written as a sum of positive squares in only one way, i.e., 59028489 + 2480625 = 7683^2 + 1575^2 .

It is a super-2 number, since 2×61509114² = 7566742210129992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1708569 + ... + 1708604.

Almost surely, 2^61509114 is an apocalyptic number.

61509114 is an abundant number, since it is smaller than the sum of its proper divisors (71760672).

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

61509114 is a wasteful number, since it uses less digits than its factorization.

61509114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417181 (or 3417178 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 61509114 is about 7842.7746365684. The cubic root of 61509114 is about 394.7418363270.

The spelling of 61509114 in words is "sixty-one million, five hundred nine thousand, one hundred fourteen".