20963154 has 8 divisors (see below), whose sum is σ = 41926320. Its totient is φ = 6987716.

The previous prime is 20963147. The next prime is 20963171. The reversal of 20963154 is 45136902.

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

20963154 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746924 + ... + 1746935.

It is an arithmetic number, because the mean of its divisors is an integer number (5240790).

Almost surely, 2^20963154 is an apocalyptic number.

20963154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20963154 is a wasteful number, since it uses less digits than its factorization.

20963154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493864.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20963154 is about 4578.5537017709. The cubic root of 20963154 is about 275.7309655237.

The spelling of 20963154 in words is "twenty million, nine hundred sixty-three thousand, one hundred fifty-four".