100262381 has 2 divisors, whose sum is σ = 100262382. Its totient is φ = 100262380.

The previous prime is 100262377. The next prime is 100262387. The reversal of 100262381 is 183262001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97199881 + 3062500 = 9859^2 + 1750^2 .

It is a cyclic number.

It is not a de Polignac number, because 100262381 - 2² = 100262377 is a prime.

It is a super-2 number, since 2×100262381² = 20105090087578322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100262387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50131190 + 50131191.

It is an arithmetic number, because the mean of its divisors is an integer number (50131191).

Almost surely, 2^100262381 is an apocalyptic number.

It is an amenable number.

100262381 is a deficient number, since it is larger than the sum of its proper divisors (1).

100262381 is an equidigital number, since it uses as much as digits as its factorization.

100262381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 100262381 is about 10013.1104557974. The cubic root of 100262381 is about 464.5644837350.

The spelling of 100262381 in words is "one hundred million, two hundred sixty-two thousand, three hundred eighty-one".