20154922 has 8 divisors (see below), whose sum is σ = 30283236. Its totient is φ = 10060512.

The previous prime is 20154907. The next prime is 20154941. The reversal of 20154922 is 22945102.

It can be written as a sum of positive squares in 2 ways, for example, as 14447601 + 5707321 = 3801^2 + 2389^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6933 + ... + 9400.

Almost surely, 2^20154922 is an apocalyptic number.

20154922 is a deficient number, since it is larger than the sum of its proper divisors (10128314).

20154922 is a wasteful number, since it uses less digits than its factorization.

20154922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16952.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20154922 is about 4489.4233482709. The cubic root of 20154922 is about 272.1408314099.

The spelling of 20154922 in words is "twenty million, one hundred fifty-four thousand, nine hundred twenty-two".