102626031 has 4 divisors (see below), whose sum is σ = 136834712. Its totient is φ = 68417352.

The previous prime is 102626021. The next prime is 102626039. The reversal of 102626031 is 130626201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102626031 - 2¹⁹ = 102101743 is a prime.

It is a super-2 number, since 2×102626031² = 21064204477625922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102625989 and 102626007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102626039) 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, 17104336 + ... + 17104341.

It is an arithmetic number, because the mean of its divisors is an integer number (34208678).

Almost surely, 2^102626031 is an apocalyptic number.

102626031 is a deficient number, since it is larger than the sum of its proper divisors (34208681).

102626031 is an equidigital number, since it uses as much as digits as its factorization.

102626031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34208680.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 102626031 is about 10130.4506809914. The cubic root of 102626031 is about 468.1868136138.

The spelling of 102626031 in words is "one hundred two million, six hundred twenty-six thousand, thirty-one".