312450172157 has 8 divisors (see below), whose sum is σ = 328901950560. Its totient is φ = 295999097040.

The previous prime is 312450172121. The next prime is 312450172193. The reversal of 312450172157 is 751271054213.

It is an interprime number because it is at equal distance from previous prime (312450172121) and next prime (312450172193).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312450172157 is a prime.

It is a super-2 number, since 2×312450172157² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312450172157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312450175157) 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, 907238 + ... + 1203320.

It is an arithmetic number, because the mean of its divisors is an integer number (41112743820).

Almost surely, 2^312450172157 is an apocalyptic number.

It is an amenable number.

312450172157 is a deficient number, since it is larger than the sum of its proper divisors (16451778403).

312450172157 is a wasteful number, since it uses less digits than its factorization.

312450172157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351643.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 312450172157 in words is "three hundred twelve billion, four hundred fifty million, one hundred seventy-two thousand, one hundred fifty-seven".