412157991 has 16 divisors (see below), whose sum is σ = 628544000. Its totient is φ = 235333728.

The previous prime is 412157981. The next prime is 412158017. The reversal of 412157991 is 199751214.

It is not a de Polignac number, because 412157991 - 2⁹ = 412157479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412157971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22365 + ... + 36393.

It is an arithmetic number, because the mean of its divisors is an integer number (39284000).

Almost surely, 2^412157991 is an apocalyptic number.

412157991 is a deficient number, since it is larger than the sum of its proper divisors (216386009).

412157991 is a wasteful number, since it uses less digits than its factorization.

412157991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15438.

The product of its digits is 22680, while the sum is 39.

The square root of 412157991 is about 20301.6745861025. The cubic root of 412157991 is about 744.1969883205.

The spelling of 412157991 in words is "four hundred twelve million, one hundred fifty-seven thousand, nine hundred ninety-one".