1420913025 has 81 divisors (see below), whose sum is σ = 2968795011. Its totient is φ = 647750880.

The previous prime is 1420913017. The next prime is 1420913041. The reversal of 1420913025 is 5203190241.

The square root of 1420913025 is 37695.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 511528689 + 909384336 = 22617^2 + 30156^2 .

It is not a de Polignac number, because 1420913025 - 2³ = 1420913017 is a prime.

It is a super-2 number, since 2×1420913025² = 4037987649229301250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420913025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3957796 + ... + 3958154.

Almost surely, 2^1420913025 is an apocalyptic number.

1420913025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1420913025 is the 37695-th square number.

1420913025 is the 18848-th centered octagonal number.

It is an amenable number.

1420913025 is an abundant number, since it is smaller than the sum of its proper divisors (1547881986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420913025 is an equidigital number, since it uses as much as digits as its factorization.

1420913025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 1420913025 is about 1124.2317124758.

The spelling of 1420913025 in words is "one billion, four hundred twenty million, nine hundred thirteen thousand, twenty-five".