39801143 has 4 divisors (see below), whose sum is σ = 41895960. Its totient is φ = 37706328.

The previous prime is 39801127. The next prime is 39801161. The reversal of 39801143 is 34110893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39801143 - 2⁴ = 39801127 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 (39801163) 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, 1047380 + ... + 1047417.

It is an arithmetic number, because the mean of its divisors is an integer number (10473990).

Almost surely, 2^39801143 is an apocalyptic number.

39801143 is a deficient number, since it is larger than the sum of its proper divisors (2094817).

39801143 is a wasteful number, since it uses less digits than its factorization.

39801143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094816.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 39801143 is about 6308.8147064247. The cubic root of 39801143 is about 341.4275130955.

The spelling of 39801143 in words is "thirty-nine million, eight hundred one thousand, one hundred forty-three".