1402128625 has 16 divisors (see below), whose sum is σ = 1750919040. Its totient is φ = 1121022000.

The previous prime is 1402128589. The next prime is 1402128643. The reversal of 1402128625 is 5268212041.

It is not a de Polignac number, because 1402128625 - 2¹¹ = 1402126577 is a prime.

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, 346866 + ... + 350884.

It is an arithmetic number, because the mean of its divisors is an integer number (109432440).

Almost surely, 2^1402128625 is an apocalyptic number.

It is an amenable number.

1402128625 is a deficient number, since it is larger than the sum of its proper divisors (348790415).

1402128625 is an equidigital number, since it uses as much as digits as its factorization.

1402128625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6825 (or 6815 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1402128625 is about 37445.0080117497. The cubic root of 1402128625 is about 1119.2556238442.

The spelling of 1402128625 in words is "one billion, four hundred two million, one hundred twenty-eight thousand, six hundred twenty-five".