115072061 has 4 divisors (see below), whose sum is σ = 123923772. Its totient is φ = 106220352.

The previous prime is 115072057. The next prime is 115072073. The reversal of 115072061 is 160270511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160270511 = 1117 ⋅143483.

It can be written as a sum of positive squares in 2 ways, for example, as 31696900 + 83375161 = 5630^2 + 9131^2 .

It is a cyclic number.

It is not a de Polignac number, because 115072061 - 2² = 115072057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115072561) 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, 4425836 + ... + 4425861.

It is an arithmetic number, because the mean of its divisors is an integer number (30980943).

Almost surely, 2^115072061 is an apocalyptic number.

It is an amenable number.

115072061 is a deficient number, since it is larger than the sum of its proper divisors (8851711).

115072061 is an equidigital number, since it uses as much as digits as its factorization.

115072061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851710.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 115072061 is about 10727.1646300409. The cubic root of 115072061 is about 486.3959654131.

The spelling of 115072061 in words is "one hundred fifteen million, seventy-two thousand, sixty-one".