20091152 has 20 divisors (see below), whose sum is σ = 39588240. Its totient is φ = 9874848.

The previous prime is 20091119. The next prime is 20091163. The reversal of 20091152 is 25119002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9698 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (1979412).

Almost surely, 2^20091152 is an apocalyptic number.

It is an amenable number.

20091152 is a deficient number, since it is larger than the sum of its proper divisors (19497088).

20091152 is a wasteful number, since it uses less digits than its factorization.

20091152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21350 (or 21344 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 20091152 is about 4482.3154730563. The cubic root of 20091152 is about 271.8535110862.

The spelling of 20091152 in words is "twenty million, ninety-one thousand, one hundred fifty-two".