38995157 has 2 divisors, whose sum is σ = 38995158. Its totient is φ = 38995156.

The previous prime is 38995153. The next prime is 38995171. The reversal of 38995157 is 75159983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32649796 + 6345361 = 5714^2 + 2519^2 .

It is an emirp because it is prime and its reverse (75159983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38995157 - 2² = 38995153 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38995153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19497578 + 19497579.

It is an arithmetic number, because the mean of its divisors is an integer number (19497579).

Almost surely, 2^38995157 is an apocalyptic number.

It is an amenable number.

38995157 is a deficient number, since it is larger than the sum of its proper divisors (1).

38995157 is an equidigital number, since it uses as much as digits as its factorization.

38995157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 38995157 is about 6244.6102360356. The cubic root of 38995157 is about 339.1071064237.

The spelling of 38995157 in words is "thirty-eight million, nine hundred ninety-five thousand, one hundred fifty-seven".