1402118521 has 8 divisors (see below), whose sum is σ = 1409587200. Its totient is φ = 1394660832.

The previous prime is 1402118513. The next prime is 1402118567. The reversal of 1402118521 is 1258112041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1402118521 - 2³ = 1402118513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402118621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404805 + ... + 408253.

It is an arithmetic number, because the mean of its divisors is an integer number (176198400).

Almost surely, 2^1402118521 is an apocalyptic number.

It is an amenable number.

1402118521 is a deficient number, since it is larger than the sum of its proper divisors (7468679).

1402118521 is a wasteful number, since it uses less digits than its factorization.

1402118521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1402118521 is about 37444.8730936560. The cubic root of 1402118521 is about 1119.2529353162.

The spelling of 1402118521 in words is "one billion, four hundred two million, one hundred eighteen thousand, five hundred twenty-one".