200137431 has 32 divisors (see below), whose sum is σ = 304541440. Its totient is φ = 115893504.

The previous prime is 200137411. The next prime is 200137451. The reversal of 200137431 is 134731002.

It is an interprime number because it is at equal distance from previous prime (200137411) and next prime (200137451).

It is not a de Polignac number, because 200137431 - 2⁷ = 200137303 is a prime.

It is a super-2 number, since 2×200137431² = 80109982574559522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200137398 and 200137407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200137411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119955 + ... + 121611.

It is an arithmetic number, because the mean of its divisors is an integer number (9516920).

Almost surely, 2^200137431 is an apocalyptic number.

200137431 is a deficient number, since it is larger than the sum of its proper divisors (104404009).

200137431 is a wasteful number, since it uses less digits than its factorization.

200137431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 200137431 is about 14146.9937089122. The cubic root of 200137431 is about 584.9374672000.

Adding to 200137431 its reverse (134731002), we get a palindrome (334868433).

The spelling of 200137431 in words is "two hundred million, one hundred thirty-seven thousand, four hundred thirty-one".