61115075 has 24 divisors (see below), whose sum is σ = 87137280. Its totient is φ = 41652000.

The previous prime is 61115063. The next prime is 61115099. The reversal of 61115075 is 57051116.

It is not a de Polignac number, because 61115075 - 2⁶ = 61115011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30350 + ... + 32300.

It is an arithmetic number, because the mean of its divisors is an integer number (3630720).

Almost surely, 2^61115075 is an apocalyptic number.

61115075 is a deficient number, since it is larger than the sum of its proper divisors (26022205).

61115075 is a wasteful number, since it uses less digits than its factorization.

61115075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 61115075 is about 7817.6131267798. The cubic root of 61115075 is about 393.8970996537.

The spelling of 61115075 in words is "sixty-one million, one hundred fifteen thousand, seventy-five".