124075661 has 4 divisors (see below), whose sum is σ = 124130112. Its totient is φ = 124021212.

The previous prime is 124075657. The next prime is 124075663. The reversal of 124075661 is 166570421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124075661 - 2² = 124075657 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 (124075663) 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, 23651 + ... + 28416.

It is an arithmetic number, because the mean of its divisors is an integer number (31032528).

Almost surely, 2^124075661 is an apocalyptic number.

It is an amenable number.

124075661 is a deficient number, since it is larger than the sum of its proper divisors (54451).

124075661 is an equidigital number, since it uses as much as digits as its factorization.

124075661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54450.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 124075661 is about 11138.9254867783. The cubic root of 124075661 is about 498.7644975822.

The spelling of 124075661 in words is "one hundred twenty-four million, seventy-five thousand, six hundred sixty-one".