214397157 has 16 divisors (see below), whose sum is σ = 308147840. Its totient is φ = 131810112.

The previous prime is 214397153. The next prime is 214397167. The reversal of 214397157 is 751793412.

It is not a de Polignac number, because 214397157 - 2² = 214397153 is a prime.

It is a super-4 number, since 4×214397157⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (39).

214397157 is a Rhonda number in base 10.

Its product of digits (52920) is a multiple of the sum of its prime divisors (5292).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214397153) 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, 53808 + ... + 57654.

It is an arithmetic number, because the mean of its divisors is an integer number (19259240).

Almost surely, 2^214397157 is an apocalyptic number.

It is an amenable number.

214397157 is a deficient number, since it is larger than the sum of its proper divisors (93750683).

214397157 is a wasteful number, since it uses less digits than its factorization.

214397157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292.

The product of its digits is 52920, while the sum is 39.

The square root of 214397157 is about 14642.3070928047. The cubic root of 214397157 is about 598.5121999120.

The spelling of 214397157 in words is "two hundred fourteen million, three hundred ninety-seven thousand, one hundred fifty-seven".