307214157 has 8 divisors (see below), whose sum is σ = 433714176. Its totient is φ = 192761792.

The previous prime is 307214093. The next prime is 307214177. The reversal of 307214157 is 751412703.

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 307214157 - 2⁶ = 307214093 is a prime.

It is a super-2 number, since 2×307214157² = 188761076522441298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307214177) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3011853 + ... + 3011954.

It is an arithmetic number, because the mean of its divisors is an integer number (54214272).

Almost surely, 2^307214157 is an apocalyptic number.

It is an amenable number.

307214157 is a deficient number, since it is larger than the sum of its proper divisors (126500019).

307214157 is a wasteful number, since it uses less digits than its factorization.

307214157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023827.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 307214157 is about 17527.5256953171. The cubic root of 307214157 is about 674.7564970789.

The spelling of 307214157 in words is "three hundred seven million, two hundred fourteen thousand, one hundred fifty-seven".