20149835 has 8 divisors (see below), whose sum is σ = 24221376. Its totient is φ = 16092160.

The previous prime is 20149807. The next prime is 20149841. The reversal of 20149835 is 53894102.

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

It is not a de Polignac number, because 20149835 - 2¹² = 20145739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62 + ... + 6348.

It is an arithmetic number, because the mean of its divisors is an integer number (3027672).

Almost surely, 2^20149835 is an apocalyptic number.

20149835 is a deficient number, since it is larger than the sum of its proper divisors (4071541).

20149835 is an equidigital number, since it uses as much as digits as its factorization.

20149835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20149835 is about 4488.8567586859. The cubic root of 20149835 is about 272.1179338286.

The spelling of 20149835 in words is "twenty million, one hundred forty-nine thousand, eight hundred thirty-five".