39450157 has 2 divisors, whose sum is σ = 39450158. Its totient is φ = 39450156.

The previous prime is 39450143. The next prime is 39450161. The reversal of 39450157 is 75105493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21353641 + 18096516 = 4621^2 + 4254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39450157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39450127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19725078 + 19725079.

It is an arithmetic number, because the mean of its divisors is an integer number (19725079).

Almost surely, 2^39450157 is an apocalyptic number.

It is an amenable number.

39450157 is a deficient number, since it is larger than the sum of its proper divisors (1).

39450157 is an equidigital number, since it uses as much as digits as its factorization.

39450157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 39450157 is about 6280.9359971265. The cubic root of 39450157 is about 340.4209233145.

The spelling of 39450157 in words is "thirty-nine million, four hundred fifty thousand, one hundred fifty-seven".