102838031 has 4 divisors (see below), whose sum is σ = 106384200. Its totient is φ = 99291864.

The previous prime is 102838007. The next prime is 102838061. The reversal of 102838031 is 130838201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130838201 = 13 ⋅10064477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102838031 is a prime.

It is a super-2 number, since 2×102838031² = 21151321239913922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102838061) 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, 1773041 + ... + 1773098.

It is an arithmetic number, because the mean of its divisors is an integer number (26596050).

Almost surely, 2^102838031 is an apocalyptic number.

102838031 is a deficient number, since it is larger than the sum of its proper divisors (3546169).

102838031 is an equidigital number, since it uses as much as digits as its factorization.

102838031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546168.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 102838031 is about 10140.9087857055. The cubic root of 102838031 is about 468.5089779354.

The spelling of 102838031 in words is "one hundred two million, eight hundred thirty-eight thousand, thirty-one".