102044513 has 4 divisors (see below), whose sum is σ = 102124848. Its totient is φ = 101964180.

The previous prime is 102044429. The next prime is 102044539. The reversal of 102044513 is 315440201.

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: 315440201 = 1999 ⋅157799.

It is a cyclic number.

It is not a de Polignac number, because 102044513 - 2²⁴ = 85267297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102044543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38231 + ... + 40812.

It is an arithmetic number, because the mean of its divisors is an integer number (25531212).

Almost surely, 2^102044513 is an apocalyptic number.

It is an amenable number.

102044513 is a deficient number, since it is larger than the sum of its proper divisors (80335).

102044513 is an equidigital number, since it uses as much as digits as its factorization.

102044513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80334.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102044513 is about 10101.7084198664. The cubic root of 102044513 is about 467.3008300649.

Adding to 102044513 its reverse (315440201), we get a palindrome (417484714).

The spelling of 102044513 in words is "one hundred two million, forty-four thousand, five hundred thirteen".