100150991 has 2 divisors, whose sum is σ = 100150992. Its totient is φ = 100150990.

The previous prime is 100150979. The next prime is 100151011. The reversal of 100150991 is 199051001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100150991 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100150991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100150951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50075495 + 50075496.

It is an arithmetic number, because the mean of its divisors is an integer number (50075496).

Almost surely, 2^100150991 is an apocalyptic number.

100150991 is a deficient number, since it is larger than the sum of its proper divisors (1).

100150991 is an equidigital number, since it uses as much as digits as its factorization.

100150991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 100150991 is about 10007.5467023642. The cubic root of 100150991 is about 464.3923785949.

The spelling of 100150991 in words is "one hundred million, one hundred fifty thousand, nine hundred ninety-one".