2126825465 has 4 divisors (see below), whose sum is σ = 2552190564. Its totient is φ = 1701460368.

The previous prime is 2126825447. The next prime is 2126825483. The reversal of 2126825465 is 5645286212.

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

It is an interprime number because it is at equal distance from previous prime (2126825447) and next prime (2126825483).

It can be written as a sum of positive squares in 2 ways, for example, as 1658362729 + 468462736 = 40723^2 + 21644^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126825465 - 2¹² = 2126821369 is a prime.

It is a Duffinian number.

It is a Curzon 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, 212682542 + ... + 212682551.

It is an arithmetic number, because the mean of its divisors is an integer number (638047641).

Almost surely, 2^2126825465 is an apocalyptic number.

It is an amenable number.

2126825465 is a deficient number, since it is larger than the sum of its proper divisors (425365099).

2126825465 is an equidigital number, since it uses as much as digits as its factorization.

2126825465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425365098.

The product of its digits is 230400, while the sum is 41.

The square root of 2126825465 is about 46117.5179839505. The cubic root of 2126825465 is about 1286.0088299281.

The spelling of 2126825465 in words is "two billion, one hundred twenty-six million, eight hundred twenty-five thousand, four hundred sixty-five".