269890513 has 2 divisors, whose sum is σ = 269890514. Its totient is φ = 269890512.

The previous prime is 269890507. The next prime is 269890529. The reversal of 269890513 is 315098962.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260112384 + 9778129 = 16128^2 + 3127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-269890513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 269890513.

It is not a weakly prime, because it can be changed into another prime (269890583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134945256 + 134945257.

It is an arithmetic number, because the mean of its divisors is an integer number (134945257).

Almost surely, 2^269890513 is an apocalyptic number.

It is an amenable number.

269890513 is a deficient number, since it is larger than the sum of its proper divisors (1).

269890513 is an equidigital number, since it uses as much as digits as its factorization.

269890513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 269890513 is about 16428.3448040270. The cubic root of 269890513 is about 646.2430312754.

The spelling of 269890513 in words is "two hundred sixty-nine million, eight hundred ninety thousand, five hundred thirteen".