38949137 has 4 divisors (see below), whose sum is σ = 39151140. Its totient is φ = 38747136.

The previous prime is 38949103. The next prime is 38949149. The reversal of 38949137 is 73194983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14258176 + 24690961 = 3776^2 + 4969^2 .

It is a cyclic number.

It is not a de Polignac number, because 38949137 - 2⁶ = 38949073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38949167) 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, 100712 + ... + 101097.

It is an arithmetic number, because the mean of its divisors is an integer number (9787785).

Almost surely, 2^38949137 is an apocalyptic number.

It is an amenable number.

38949137 is a deficient number, since it is larger than the sum of its proper divisors (202003).

38949137 is a wasteful number, since it uses less digits than its factorization.

38949137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202002.

The product of its digits is 163296, while the sum is 44.

The square root of 38949137 is about 6240.9243706361. The cubic root of 38949137 is about 338.9736552187.

It can be divided in two parts, 3894 and 9137, that added together give a palindrome (13031).

The spelling of 38949137 in words is "thirty-eight million, nine hundred forty-nine thousand, one hundred thirty-seven".