100647493 has 2 divisors, whose sum is σ = 100647494. Its totient is φ = 100647492.

The previous prime is 100647479. The next prime is 100647529. The reversal of 100647493 is 394746001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61121124 + 39526369 = 7818^2 + 6287^2 .

It is a cyclic number.

It is not a de Polignac number, because 100647493 - 2²¹ = 98550341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100647413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50323746 + 50323747.

It is an arithmetic number, because the mean of its divisors is an integer number (50323747).

Almost surely, 2^100647493 is an apocalyptic number.

It is an amenable number.

100647493 is a deficient number, since it is larger than the sum of its proper divisors (1).

100647493 is an equidigital number, since it uses as much as digits as its factorization.

100647493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 100647493 is about 10032.3224130806. The cubic root of 100647493 is about 465.1585276729.

The spelling of 100647493 in words is "one hundred million, six hundred forty-seven thousand, four hundred ninety-three".