100257071 has 2 divisors, whose sum is σ = 100257072. Its totient is φ = 100257070.

The previous prime is 100257067. The next prime is 100257077. The reversal of 100257071 is 170752001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100257071 - 2² = 100257067 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100257077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50128535 + 50128536.

It is an arithmetic number, because the mean of its divisors is an integer number (50128536).

Almost surely, 2^100257071 is an apocalyptic number.

100257071 is a deficient number, since it is larger than the sum of its proper divisors (1).

100257071 is an equidigital number, since it uses as much as digits as its factorization.

100257071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 100257071 is about 10012.8452999135. The cubic root of 100257071 is about 464.5562823174.

The spelling of 100257071 in words is "one hundred million, two hundred fifty-seven thousand, seventy-one".