260434137 has 4 divisors (see below), whose sum is σ = 347245520. Its totient is φ = 173622756.

The previous prime is 260434133. The next prime is 260434147. The reversal of 260434137 is 731434062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 260434137 - 2² = 260434133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260434133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43405687 + ... + 43405692.

It is an arithmetic number, because the mean of its divisors is an integer number (86811380).

Almost surely, 2^260434137 is an apocalyptic number.

It is an amenable number.

260434137 is a deficient number, since it is larger than the sum of its proper divisors (86811383).

260434137 is an equidigital number, since it uses as much as digits as its factorization.

260434137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86811382.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 260434137 is about 16137.9718985999. The cubic root of 260434137 is about 638.6054735353.

Adding to 260434137 its reverse (731434062), we get a palindrome (991868199).

The spelling of 260434137 in words is "two hundred sixty million, four hundred thirty-four thousand, one hundred thirty-seven".