1400025265 has 4 divisors (see below), whose sum is σ = 1680030324. Its totient is φ = 1120020208.

The previous prime is 1400025247. The next prime is 1400025313. The reversal of 1400025265 is 5625200041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 774174976 + 625850289 = 27824^2 + 25017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400025265 - 2²⁹ = 863154353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140002522 + ... + 140002531.

It is an arithmetic number, because the mean of its divisors is an integer number (420007581).

Almost surely, 2^1400025265 is an apocalyptic number.

It is an amenable number.

1400025265 is a deficient number, since it is larger than the sum of its proper divisors (280005059).

1400025265 is an equidigital number, since it uses as much as digits as its factorization.

1400025265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280005058.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1400025265 is about 37416.9114839801. The cubic root of 1400025265 is about 1118.6956714876.

The spelling of 1400025265 in words is "one billion, four hundred million, twenty-five thousand, two hundred sixty-five".