39149459 has 2 divisors, whose sum is σ = 39149460. Its totient is φ = 39149458.

The previous prime is 39149447. The next prime is 39149483. The reversal of 39149459 is 95494193.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39149459 is a prime.

It is not a weakly prime, because it can be changed into another prime (39149659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19574729 + 19574730.

It is an arithmetic number, because the mean of its divisors is an integer number (19574730).

Almost surely, 2^39149459 is an apocalyptic number.

39149459 is a deficient number, since it is larger than the sum of its proper divisors (1).

39149459 is an equidigital number, since it uses as much as digits as its factorization.

39149459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 39149459 is about 6256.9528526272. The cubic root of 39149459 is about 339.5537947166.

The spelling of 39149459 in words is "thirty-nine million, one hundred forty-nine thousand, four hundred fifty-nine".