12045257251 has 8 divisors (see below), whose sum is σ = 12576824064. Its totient is φ = 11514345480.

The previous prime is 12045257227. The next prime is 12045257311. The reversal of 12045257251 is 15275254021.

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 12045257251 - 2¹³ = 12045249059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12045257951) 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, 125985 + ... + 199906.

It is an arithmetic number, because the mean of its divisors is an integer number (1572103008).

Almost surely, 2^12045257251 is an apocalyptic number.

12045257251 is a deficient number, since it is larger than the sum of its proper divisors (531566813).

12045257251 is a wasteful number, since it uses less digits than its factorization.

12045257251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327521.

The product of its (nonzero) digits is 28000, while the sum is 34.

The spelling of 12045257251 in words is "twelve billion, forty-five million, two hundred fifty-seven thousand, two hundred fifty-one".