103290513 has 4 divisors (see below), whose sum is σ = 137720688. Its totient is φ = 68860340.

The previous prime is 103290511. The next prime is 103290527. The reversal of 103290513 is 315092301.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 315092301 = 3 ⋅105030767.

It is a cyclic number.

It is not a de Polignac number, because 103290513 - 2¹ = 103290511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103290511) 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, 17215083 + ... + 17215088.

It is an arithmetic number, because the mean of its divisors is an integer number (34430172).

Almost surely, 2^103290513 is an apocalyptic number.

It is an amenable number.

103290513 is a deficient number, since it is larger than the sum of its proper divisors (34430175).

103290513 is an equidigital number, since it uses as much as digits as its factorization.

103290513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34430174.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 103290513 is about 10163.1940353414. The cubic root of 103290513 is about 469.1951109977.

The spelling of 103290513 in words is "one hundred three million, two hundred ninety thousand, five hundred thirteen".