38851157 has 4 divisors (see below), whose sum is σ = 38978016. Its totient is φ = 38724300.

The previous prime is 38851151. The next prime is 38851193. The reversal of 38851157 is 75115883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38851157 - 2⁸ = 38850901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38851157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38851151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62969 + ... + 63582.

It is an arithmetic number, because the mean of its divisors is an integer number (9744504).

Almost surely, 2^38851157 is an apocalyptic number.

It is an amenable number.

38851157 is a deficient number, since it is larger than the sum of its proper divisors (126859).

38851157 is a wasteful number, since it uses less digits than its factorization.

38851157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126858.

The product of its digits is 33600, while the sum is 38.

The square root of 38851157 is about 6233.0696290030. The cubic root of 38851157 is about 338.6891771356.

The spelling of 38851157 in words is "thirty-eight million, eight hundred fifty-one thousand, one hundred fifty-seven".