100672513 has 2 divisors, whose sum is σ = 100672514. Its totient is φ = 100672512.

The previous prime is 100672511. The next prime is 100672547. The reversal of 100672513 is 315276001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67125249 + 33547264 = 8193^2 + 5792^2 .

It is a cyclic number.

It is not a de Polignac number, because 100672513 - 2¹ = 100672511 is a prime.

Together with 100672511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100672511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50336256 + 50336257.

It is an arithmetic number, because the mean of its divisors is an integer number (50336257).

Almost surely, 2^100672513 is an apocalyptic number.

It is an amenable number.

100672513 is a deficient number, since it is larger than the sum of its proper divisors (1).

100672513 is an equidigital number, since it uses as much as digits as its factorization.

100672513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 100672513 is about 10033.5693050878. The cubic root of 100672513 is about 465.1970691267.

The spelling of 100672513 in words is "one hundred million, six hundred seventy-two thousand, five hundred thirteen".