102550031 has 4 divisors (see below), whose sum is σ = 107008752. Its totient is φ = 98091312.

The previous prime is 102550027. The next prime is 102550037. The reversal of 102550031 is 130055201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130055201 = 7433 ⋅17497.

It is a cyclic number.

It is not a de Polignac number, because 102550031 - 2² = 102550027 is a prime.

It is a super-2 number, since 2×102550031² = 21033017716201922, 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 = 102549991 and 102550009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102550037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229326 + ... + 2229371.

It is an arithmetic number, because the mean of its divisors is an integer number (26752188).

Almost surely, 2^102550031 is an apocalyptic number.

102550031 is a deficient number, since it is larger than the sum of its proper divisors (4458721).

102550031 is an equidigital number, since it uses as much as digits as its factorization.

102550031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458720.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 102550031 is about 10126.6989191938. The cubic root of 102550031 is about 468.0712127128.

The spelling of 102550031 in words is "one hundred two million, five hundred fifty thousand, thirty-one".