2512133465 has 4 divisors (see below), whose sum is σ = 3014560164. Its totient is φ = 2009706768.

The previous prime is 2512133417. The next prime is 2512133471. The reversal of 2512133465 is 5643312152.

It is a happy number.

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 507691024 + 2004442441 = 22532^2 + 44771^2 .

It is a cyclic number.

It is not a de Polignac number, because 2512133465 - 2¹² = 2512129369 is a prime.

It is a super-3 number, since 3×2512133465³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251213342 + ... + 251213351.

It is an arithmetic number, because the mean of its divisors is an integer number (753640041).

Almost surely, 2^2512133465 is an apocalyptic number.

It is an amenable number.

2512133465 is a deficient number, since it is larger than the sum of its proper divisors (502426699).

2512133465 is an equidigital number, since it uses as much as digits as its factorization.

2512133465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502426698.

The product of its digits is 21600, while the sum is 32.

The square root of 2512133465 is about 50121.1877852072. The cubic root of 2512133465 is about 1359.4009517501.

The spelling of 2512133465 in words is "two billion, five hundred twelve million, one hundred thirty-three thousand, four hundred sixty-five".