20254137 has 8 divisors (see below), whose sum is σ = 27258336. Its totient is φ = 13376352.

The previous prime is 20254127. The next prime is 20254141. The reversal of 20254137 is 73145202.

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

It is not a de Polignac number, because 20254137 - 2⁴ = 20254121 is a prime.

It is a super-2 number, since 2×20254137² = 820460131229538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20254127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31228 + ... + 31869.

It is an arithmetic number, because the mean of its divisors is an integer number (3407292).

Almost surely, 2^20254137 is an apocalyptic number.

It is an amenable number.

20254137 is a deficient number, since it is larger than the sum of its proper divisors (7004199).

20254137 is a wasteful number, since it uses less digits than its factorization.

20254137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63207.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20254137 is about 4500.4596431920. The cubic root of 20254137 is about 272.5866492113.

Adding to 20254137 its reverse (73145202), we get a palindrome (93399339).

The spelling of 20254137 in words is "twenty million, two hundred fifty-four thousand, one hundred thirty-seven".