2125136406251 has 8 divisors (see below), whose sum is σ = 2125913563344. Its totient is φ = 2124359402400.

The previous prime is 2125136406223. The next prime is 2125136406271. The reversal of 2125136406251 is 1526046315212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125136406251 - 2²⁶ = 2125069297387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125136406271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32560016 + ... + 32625218.

It is an arithmetic number, because the mean of its divisors is an integer number (265739195418).

Almost surely, 2^{2125136406251} is an apocalyptic number.

2125136406251 is a deficient number, since it is larger than the sum of its proper divisors (777157093).

2125136406251 is an equidigital number, since it uses as much as digits as its factorization.

2125136406251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76621.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 2125136406251 in words is "two trillion, one hundred twenty-five billion, one hundred thirty-six million, four hundred six thousand, two hundred fifty-one".