39157007 has 2 divisors, whose sum is σ = 39157008. Its totient is φ = 39157006.

The previous prime is 39156977. The next prime is 39157037. The reversal of 39157007 is 70075193.

It is a balanced prime because it is at equal distance from previous prime (39156977) and next prime (39157037).

It is an emirp because it is prime and its reverse (70075193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39157007 - 2²² = 34962703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39157037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19578503 + 19578504.

It is an arithmetic number, because the mean of its divisors is an integer number (19578504).

Almost surely, 2^39157007 is an apocalyptic number.

39157007 is a deficient number, since it is larger than the sum of its proper divisors (1).

39157007 is an equidigital number, since it uses as much as digits as its factorization.

39157007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 39157007 is about 6257.5559925581. Note that the first 3 decimals coincide. The cubic root of 39157007 is about 339.5756152594.

The spelling of 39157007 in words is "thirty-nine million, one hundred fifty-seven thousand, seven".