1401287825 has 12 divisors (see below), whose sum is σ = 1985825280. Its totient is φ = 960882960.

The previous prime is 1401287813. The next prime is 1401287843. The reversal of 1401287825 is 5287821041.

It is not a de Polignac number, because 1401287825 - 2⁴ = 1401287809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4003505 + ... + 4003854.

It is an arithmetic number, because the mean of its divisors is an integer number (165485440).

Almost surely, 2^1401287825 is an apocalyptic number.

It is an amenable number.

1401287825 is a deficient number, since it is larger than the sum of its proper divisors (584537455).

1401287825 is an equidigital number, since it uses as much as digits as its factorization.

1401287825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8007376 (or 8007371 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 1401287825 is about 37433.7791974040. The cubic root of 1401287825 is about 1119.0318549541.

The spelling of 1401287825 in words is "one billion, four hundred one million, two hundred eighty-seven thousand, eight hundred twenty-five".