38421151 has 4 divisors (see below), whose sum is σ = 38451600. Its totient is φ = 38390704.

The previous prime is 38421127. The next prime is 38421157. The reversal of 38421151 is 15112483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15112483 = 283 ⋅53401.

It is a cyclic number.

It is not a de Polignac number, because 38421151 - 2⁷ = 38421023 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 (38421157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13246 + ... + 15883.

It is an arithmetic number, because the mean of its divisors is an integer number (9612900).

Almost surely, 2^38421151 is an apocalyptic number.

38421151 is a deficient number, since it is larger than the sum of its proper divisors (30449).

38421151 is a wasteful number, since it uses less digits than its factorization.

38421151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30448.

The product of its digits is 960, while the sum is 25.

The square root of 38421151 is about 6198.4797329668. The cubic root of 38421151 is about 337.4349972663.

The spelling of 38421151 in words is "thirty-eight million, four hundred twenty-one thousand, one hundred fifty-one".