102140793 has 6 divisors (see below), whose sum is σ = 147536714. Its totient is φ = 68093856.

The previous prime is 102140791. The next prime is 102140821. The reversal of 102140793 is 397041201.

It can be written as a sum of positive squares in only one way, i.e., 62299449 + 39841344 = 7893^2 + 6312^2 .

It is not a de Polignac number, because 102140793 - 2¹ = 102140791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102140791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5674480 + ... + 5674497.

Almost surely, 2^102140793 is an apocalyptic number.

It is an amenable number.

102140793 is a deficient number, since it is larger than the sum of its proper divisors (45395921).

102140793 is a wasteful number, since it uses less digits than its factorization.

102140793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11348983 (or 11348980 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 102140793 is about 10106.4728268571. The cubic root of 102140793 is about 467.4477515078.

Adding to 102140793 its reverse (397041201), we get a palindrome (499181994).

It can be divided in two parts, 1021 and 40793, that added together give a palindrome (41814).

The spelling of 102140793 in words is "one hundred two million, one hundred forty thousand, seven hundred ninety-three".