39801149 has 4 divisors (see below), whose sum is σ = 40395264. Its totient is φ = 39207036.

The previous prime is 39801127. The next prime is 39801161. The reversal of 39801149 is 94110893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94110893 = 569 ⋅165397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39801149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39801649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296957 + ... + 297090.

It is an arithmetic number, because the mean of its divisors is an integer number (10098816).

Almost surely, 2^39801149 is an apocalyptic number.

It is an amenable number.

39801149 is a deficient number, since it is larger than the sum of its proper divisors (594115).

39801149 is an equidigital number, since it uses as much as digits as its factorization.

39801149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594114.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 39801149 is about 6308.8151819498. The cubic root of 39801149 is about 341.4275302521.

The spelling of 39801149 in words is "thirty-nine million, eight hundred one thousand, one hundred forty-nine".