102620029 has 4 divisors (see below), whose sum is σ = 103403520. Its totient is φ = 101836540.

The previous prime is 102619961. The next prime is 102620047. The reversal of 102620029 is 920026201.

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: 920026201 = 37 ⋅24865573.

It is a cyclic number.

It is not a de Polignac number, because 102620029 - 2⁷ = 102619901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102619991 and 102620009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102620069) 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, 391549 + ... + 391810.

It is an arithmetic number, because the mean of its divisors is an integer number (25850880).

Almost surely, 2^102620029 is an apocalyptic number.

It is an amenable number.

102620029 is a deficient number, since it is larger than the sum of its proper divisors (783491).

102620029 is an equidigital number, since it uses as much as digits as its factorization.

102620029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783490.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 102620029 is about 10130.1544410734. The cubic root of 102620029 is about 468.1776862608.

The spelling of 102620029 in words is "one hundred two million, six hundred twenty thousand, twenty-nine".