1505123199 has 12 divisors (see below), whose sum is σ = 2175951336. Its totient is φ = 1002545712.

The previous prime is 1505123183. The next prime is 1505123219. The reversal of 1505123199 is 9913215051.

1505123199 is a `hidden beast` number, since 1 + 50 + 512 + 3 + 1 + 99 = 666.

It is not a de Polignac number, because 1505123199 - 2⁴ = 1505123183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1505123119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61432 + ... + 82365.

It is an arithmetic number, because the mean of its divisors is an integer number (181329278).

Almost surely, 2^1505123199 is an apocalyptic number.

1505123199 is a deficient number, since it is larger than the sum of its proper divisors (670828137).

1505123199 is a wasteful number, since it uses less digits than its factorization.

1505123199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144966 (or 144963 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 1505123199 is about 38795.9172980869. The cubic root of 1505123199 is about 1146.0160058253.

The spelling of 1505123199 in words is "one billion, five hundred five million, one hundred twenty-three thousand, one hundred ninety-nine".