39289157 has 2 divisors, whose sum is σ = 39289158. Its totient is φ = 39289156.

The previous prime is 39289099. The next prime is 39289163. The reversal of 39289157 is 75198293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 923521 = 6194^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 39289157 - 2⁸ = 39288901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39288157) 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, 19644578 + 19644579.

It is an arithmetic number, because the mean of its divisors is an integer number (19644579).

Almost surely, 2^39289157 is an apocalyptic number.

It is an amenable number.

39289157 is a deficient number, since it is larger than the sum of its proper divisors (1).

39289157 is an equidigital number, since it uses as much as digits as its factorization.

39289157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The square root of 39289157 is about 6268.1063328568. The cubic root of 39289157 is about 339.9571947265.

The spelling of 39289157 in words is "thirty-nine million, two hundred eighty-nine thousand, one hundred fifty-seven".