120615623 has 4 divisors (see below), whose sum is σ = 120861768. Its totient is φ = 120369480.

The previous prime is 120615619. The next prime is 120615631. The reversal of 120615623 is 326516021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326516021 = 13 ⋅25116617.

It is a cyclic number.

It is not a de Polignac number, because 120615623 - 2² = 120615619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120615592 and 120615601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120615223) 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, 122336 + ... + 123317.

It is an arithmetic number, because the mean of its divisors is an integer number (30215442).

Almost surely, 2^120615623 is an apocalyptic number.

120615623 is a deficient number, since it is larger than the sum of its proper divisors (246145).

120615623 is an equidigital number, since it uses as much as digits as its factorization.

120615623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246144.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 120615623 is about 10982.5144206598. The cubic root of 120615623 is about 494.0844526073.

The spelling of 120615623 in words is "one hundred twenty million, six hundred fifteen thousand, six hundred twenty-three".