1402123915 has 16 divisors (see below), whose sum is σ = 1701487296. Its totient is φ = 1109104000.

The previous prime is 1402123883. The next prime is 1402123927. The reversal of 1402123915 is 5193212041.

It is not a de Polignac number, because 1402123915 - 2⁵ = 1402123883 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519309 + ... + 522001.

It is an arithmetic number, because the mean of its divisors is an integer number (106342956).

Almost surely, 2^1402123915 is an apocalyptic number.

1402123915 is a deficient number, since it is larger than the sum of its proper divisors (299363381).

1402123915 is a wasteful number, since it uses less digits than its factorization.

1402123915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1402123915 is about 37444.9451194684. The cubic root of 1402123915 is about 1119.2543705830.

Adding to 1402123915 its reverse (5193212041), we get a palindrome (6595335956).

The spelling of 1402123915 in words is "one billion, four hundred two million, one hundred twenty-three thousand, nine hundred fifteen".