100531373 has 2 divisors, whose sum is σ = 100531374. Its totient is φ = 100531372.

The previous prime is 100531351. The next prime is 100531393. The reversal of 100531373 is 373135001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98346889 + 2184484 = 9917^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 100531373 - 2¹² = 100527277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100531393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50265686 + 50265687.

It is an arithmetic number, because the mean of its divisors is an integer number (50265687).

Almost surely, 2^100531373 is an apocalyptic number.

It is an amenable number.

100531373 is a deficient number, since it is larger than the sum of its proper divisors (1).

100531373 is an equidigital number, since it uses as much as digits as its factorization.

100531373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 100531373 is about 10026.5334488047. The cubic root of 100531373 is about 464.9795697657.

Adding to 100531373 its reverse (373135001), we get a palindrome (473666374).

The spelling of 100531373 in words is "one hundred million, five hundred thirty-one thousand, three hundred seventy-three".