38923151 has 2 divisors, whose sum is σ = 38923152. Its totient is φ = 38923150.

The previous prime is 38923117. The next prime is 38923169. The reversal of 38923151 is 15132983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38923151 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38923111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19461575 + 19461576.

It is an arithmetic number, because the mean of its divisors is an integer number (19461576).

Almost surely, 2^38923151 is an apocalyptic number.

38923151 is a deficient number, since it is larger than the sum of its proper divisors (1).

38923151 is an equidigital number, since it uses as much as digits as its factorization.

38923151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 38923151 is about 6238.8421201374. The cubic root of 38923151 is about 338.8982532135.

The spelling of 38923151 in words is "thirty-eight million, nine hundred twenty-three thousand, one hundred fifty-one".