2015402923 has 4 divisors (see below), whose sum is σ = 2015642488. Its totient is φ = 2015163360.

The previous prime is 2015402897. The next prime is 2015402933. The reversal of 2015402923 is 3292045102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2015402923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2015402891 and 2015402900.

It is not an unprimeable number, because it can be changed into a prime (2015402933) 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, 106686 + ... + 124147.

It is an arithmetic number, because the mean of its divisors is an integer number (503910622).

Almost surely, 2^2015402923 is an apocalyptic number.

2015402923 is a deficient number, since it is larger than the sum of its proper divisors (239565).

2015402923 is an equidigital number, since it uses as much as digits as its factorization.

2015402923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239564.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2015402923 is about 44893.2391680529. The cubic root of 2015402923 is about 1263.1471931616.

The spelling of 2015402923 in words is "two billion, fifteen million, four hundred two thousand, nine hundred twenty-three".