39149297 has 8 divisors (see below), whose sum is σ = 43149792. Its totient is φ = 35222400.

The previous prime is 39149237. The next prime is 39149321. The reversal of 39149297 is 79294193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39149297 - 2¹⁰ = 39148273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39149207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17279 + ... + 19412.

It is an arithmetic number, because the mean of its divisors is an integer number (5393724).

Almost surely, 2^39149297 is an apocalyptic number.

It is an amenable number.

39149297 is a deficient number, since it is larger than the sum of its proper divisors (4000495).

39149297 is a wasteful number, since it uses less digits than its factorization.

39149297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36799.

The product of its digits is 122472, while the sum is 44.

The square root of 39149297 is about 6256.9399070152. The cubic root of 39149297 is about 339.5533263594.

Subtracting 39149297 from its reverse (79294193), we obtain a square (40144896 = 6336²).

The spelling of 39149297 in words is "thirty-nine million, one hundred forty-nine thousand, two hundred ninety-seven".