102261013 has 4 divisors (see below), whose sum is σ = 106707168. Its totient is φ = 97814860.

The previous prime is 102260999. The next prime is 102261017. The reversal of 102261013 is 310162201.

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 102261013 - 2⁵ = 102260981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102261017) 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, 2223043 + ... + 2223088.

It is an arithmetic number, because the mean of its divisors is an integer number (26676792).

Almost surely, 2^102261013 is an apocalyptic number.

It is an amenable number.

102261013 is a deficient number, since it is larger than the sum of its proper divisors (4446155).

102261013 is an equidigital number, since it uses as much as digits as its factorization.

102261013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446154.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 102261013 is about 10112.4187512187. The cubic root of 102261013 is about 467.6310753742.

The spelling of 102261013 in words is "one hundred two million, two hundred sixty-one thousand, thirteen".