150499999 has 16 divisors (see below), whose sum is σ = 165773664. Its totient is φ = 135792000.

The previous prime is 150499981. The next prime is 150500027. The reversal of 150499999 is 999994051.

It is a cyclic number.

It is not a de Polignac number, because 150499999 - 2⁵ = 150499967 is a prime.

It is a Duffinian number.

150499999 is a modest number, since divided by 99999 gives 1504 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150499949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108289 + ... + 109669.

It is an arithmetic number, because the mean of its divisors is an integer number (10360854).

Almost surely, 2^150499999 is an apocalyptic number.

150499999 is a deficient number, since it is larger than the sum of its proper divisors (15273665).

150499999 is a wasteful number, since it uses less digits than its factorization.

150499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 1180980, while the sum is 55.

The square root of 150499999 is about 12267.8441056283. The cubic root of 150499999 is about 531.9189945349.

It can be divided in two parts, 1504 and 99999, that multiplied together give a triangular number (150398496 = T₁₇₃₄₃).

The spelling of 150499999 in words is "one hundred fifty million, four hundred ninety-nine thousand, nine hundred ninety-nine".