38145148331 has 4 divisors (see below), whose sum is σ = 38146942152. Its totient is φ = 38143354512.

The previous prime is 38145148319. The next prime is 38145148333. The reversal of 38145148331 is 13384154183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13384154183 = 53 ⋅252531211.

It is a cyclic number.

It is not a de Polignac number, because 38145148331 - 2³⁴ = 20965279147 is a prime.

It is a super-2 number, since 2×38145148331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38145148333) 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, 864626 + ... + 907671.

It is an arithmetic number, because the mean of its divisors is an integer number (9536735538).

Almost surely, 2^38145148331 is an apocalyptic number.

38145148331 is a deficient number, since it is larger than the sum of its proper divisors (1793821).

38145148331 is a wasteful number, since it uses less digits than its factorization.

38145148331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793820.

The product of its digits is 138240, while the sum is 41.

The spelling of 38145148331 in words is "thirty-eight billion, one hundred forty-five million, one hundred forty-eight thousand, three hundred thirty-one".