100260257 has 2 divisors, whose sum is σ = 100260258. Its totient is φ = 100260256.

The previous prime is 100260253. The next prime is 100260263. The reversal of 100260257 is 752062001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88943761 + 11316496 = 9431^2 + 3364^2 .

It is an emirp because it is prime and its reverse (752062001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100260257 - 2² = 100260253 is a prime.

It is not a weakly prime, because it can be changed into another prime (100260253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50130128 + 50130129.

It is an arithmetic number, because the mean of its divisors is an integer number (50130129).

Almost surely, 2^100260257 is an apocalyptic number.

It is an amenable number.

100260257 is a deficient number, since it is larger than the sum of its proper divisors (1).

100260257 is an equidigital number, since it uses as much as digits as its factorization.

100260257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 100260257 is about 10013.0043942865. The cubic root of 100260257 is about 464.5612032027.

The spelling of 100260257 in words is "one hundred million, two hundred sixty thousand, two hundred fifty-seven".