38143497 has 16 divisors (see below), whose sum is σ = 60128640. Its totient is φ = 21044352.

The previous prime is 38143493. The next prime is 38143519. The reversal of 38143497 is 79434183.

It is not a de Polignac number, because 38143497 - 2² = 38143493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38143493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30708 + ... + 31925.

It is an arithmetic number, because the mean of its divisors is an integer number (3758040).

Almost surely, 2^38143497 is an apocalyptic number.

It is an amenable number.

38143497 is a deficient number, since it is larger than the sum of its proper divisors (21985143).

38143497 is a wasteful number, since it uses less digits than its factorization.

38143497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62672.

The product of its digits is 72576, while the sum is 39.

The square root of 38143497 is about 6176.0421792601. The cubic root of 38143497 is about 336.6201962894.

The spelling of 38143497 in words is "thirty-eight million, one hundred forty-three thousand, four hundred ninety-seven".