20137234 has 16 divisors (see below), whose sum is σ = 32706072. Its totient is φ = 9243648.

The previous prime is 20137217. The next prime is 20137241. The reversal of 20137234 is 43273102.

It can be written as a sum of positive squares in 4 ways, for example, as 14861025 + 5276209 = 3855^2 + 2297^2 .

It is a super-4 number, since 4×20137234⁴ (a number of 30 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3012 + ... + 7024.

Almost surely, 2^20137234 is an apocalyptic number.

20137234 is a deficient number, since it is larger than the sum of its proper divisors (12568838).

20137234 is a wasteful number, since it uses less digits than its factorization.

20137234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20137234 is about 4487.4529523996. The cubic root of 20137234 is about 272.0611976631.

The spelling of 20137234 in words is "twenty million, one hundred thirty-seven thousand, two hundred thirty-four".