634033157 has 8 divisors (see below), whose sum is σ = 663181440. Its totient is φ = 605016720.

The previous prime is 634033129. The next prime is 634033199. The reversal of 634033157 is 751330436.

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 634033157 - 2⁶ = 634033093 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 (634033357) 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, 23057 + ... + 42422.

It is an arithmetic number, because the mean of its divisors is an integer number (82897680).

Almost surely, 2^634033157 is an apocalyptic number.

It is an amenable number.

634033157 is a deficient number, since it is larger than the sum of its proper divisors (29148283).

634033157 is a wasteful number, since it uses less digits than its factorization.

634033157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65923.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 634033157 is about 25180.0150317668. The cubic root of 634033157 is about 859.0873484737.

The spelling of 634033157 in words is "six hundred thirty-four million, thirty-three thousand, one hundred fifty-seven".