6115601 has 4 divisors (see below), whose sum is σ = 6264804. Its totient is φ = 5966400.

The previous prime is 6115579. The next prime is 6115639. The reversal of 6115601 is 1065116.

It is a happy number.

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 2637376 + 3478225 = 1624^2 + 1865^2 .

It is a cyclic number.

It is not a de Polignac number, because 6115601 - 2⁶ = 6115537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6115661) 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, 74540 + ... + 74621.

It is an arithmetic number, because the mean of its divisors is an integer number (1566201).

Almost surely, 2^6115601 is an apocalyptic number.

It is an amenable number.

6115601 is a deficient number, since it is larger than the sum of its proper divisors (149203).

6115601 is a wasteful number, since it uses less digits than its factorization.

6115601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149202.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 6115601 is about 2472.9741203660. The cubic root of 6115601 is about 182.8716489782.

The spelling of 6115601 in words is "six million, one hundred fifteen thousand, six hundred one".