150101999 has 4 divisors (see below), whose sum is σ = 155277960. Its totient is φ = 144926040.

The previous prime is 150101981. The next prime is 150102011. The reversal of 150101999 is 999101051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150101999 is a prime.

It is a super-2 number, since 2×150101999² = 45061220207592002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150101099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2587937 + ... + 2587994.

It is an arithmetic number, because the mean of its divisors is an integer number (38819490).

Almost surely, 2^150101999 is an apocalyptic number.

150101999 is a deficient number, since it is larger than the sum of its proper divisors (5175961).

150101999 is an equidigital number, since it uses as much as digits as its factorization.

150101999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175960.

The product of its (nonzero) digits is 3645, while the sum is 35.

The square root of 150101999 is about 12251.6120980057. The cubic root of 150101999 is about 531.4496907607.

The spelling of 150101999 in words is "one hundred fifty million, one hundred one thousand, nine hundred ninety-nine".