34638157 has 8 divisors (see below), whose sum is σ = 34971552. Its totient is φ = 34306800.

The previous prime is 34638143. The next prime is 34638173. The reversal of 34638157 is 75183643.

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 34638157 - 2²³ = 26249549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34638187) 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, 74907 + ... + 75367.

It is an arithmetic number, because the mean of its divisors is an integer number (4371444).

Almost surely, 2^34638157 is an apocalyptic number.

It is an amenable number.

34638157 is a deficient number, since it is larger than the sum of its proper divisors (333395).

34638157 is a wasteful number, since it uses less digits than its factorization.

34638157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019.

The product of its digits is 60480, while the sum is 37.

The square root of 34638157 is about 5885.4190165187. The cubic root of 34638157 is about 325.9754739600.

It can be divided in two parts, 346 and 38157, that added together give a triangular number (38503 = T₂₇₇).

The spelling of 34638157 in words is "thirty-four million, six hundred thirty-eight thousand, one hundred fifty-seven".