100862491 has 2 divisors, whose sum is σ = 100862492. Its totient is φ = 100862490.

The previous prime is 100862473. The next prime is 100862519. The reversal of 100862491 is 194268001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100862491 - 2⁹ = 100861979 is a prime.

It is not a weakly prime, because it can be changed into another prime (100862401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50431245 + 50431246.

It is an arithmetic number, because the mean of its divisors is an integer number (50431246).

Almost surely, 2^100862491 is an apocalyptic number.

100862491 is a deficient number, since it is larger than the sum of its proper divisors (1).

100862491 is an equidigital number, since it uses as much as digits as its factorization.

100862491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 100862491 is about 10043.0319625101. The cubic root of 100862491 is about 465.4895080209.

The spelling of 100862491 in words is "one hundred million, eight hundred sixty-two thousand, four hundred ninety-one".