20107954 has 4 divisors (see below), whose sum is σ = 30161934. Its totient is φ = 10053976.

The previous prime is 20107951. The next prime is 20108009. The reversal of 20107954 is 45970102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 1054729 = 4365^2 + 1027^2 .

It is a super-2 number, since 2×20107954² = 808659628132232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20107951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5026987 + ... + 5026990.

Almost surely, 2^20107954 is an apocalyptic number.

20107954 is a deficient number, since it is larger than the sum of its proper divisors (10053980).

20107954 is a wasteful number, since it uses less digits than its factorization.

20107954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053979.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20107954 is about 4484.1893358778. The cubic root of 20107954 is about 271.9292726284.

The spelling of 20107954 in words is "twenty million, one hundred seven thousand, nine hundred fifty-four".