20214154 has 8 divisors (see below), whose sum is σ = 30372228. Its totient is φ = 10090080.

The previous prime is 20214149. The next prime is 20214163. The reversal of 20214154 is 45141202.

It can be written as a sum of positive squares in 2 ways, for example, as 11937025 + 8277129 = 3455^2 + 2877^2 .

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

It is a super-2 number, since 2×20214154² = 817224043871432, which contains 22 as substring.

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, 6957 + ... + 9424.

Almost surely, 2^20214154 is an apocalyptic number.

20214154 is a deficient number, since it is larger than the sum of its proper divisors (10158074).

20214154 is a wasteful number, since it uses less digits than its factorization.

20214154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17000.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 20214154 is about 4496.0153469489. The cubic root of 20214154 is about 272.4071630559.

Adding to 20214154 its reverse (45141202), we get a palindrome (65355356).

The spelling of 20214154 in words is "twenty million, two hundred fourteen thousand, one hundred fifty-four".