156000099 has 16 divisors (see below), whose sum is σ = 218260224. Its totient is φ = 98920800.

The previous prime is 156000079. The next prime is 156000101. The reversal of 156000099 is 990000651.

It is a Cunningham number, because it is equal to 12490²-1.

It is not a de Polignac number, because 156000099 - 2⁷ = 155999971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156000049) 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, 6244 + ... + 18734.

It is an arithmetic number, because the mean of its divisors is an integer number (13641264).

Almost surely, 2^156000099 is an apocalyptic number.

156000099 is a deficient number, since it is larger than the sum of its proper divisors (62260125).

156000099 is a wasteful number, since it uses less digits than its factorization.

156000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12698.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 156000099 is about 12489.9999599680. Note that the first 4 decimals coincide. The cubic root of 156000099 is about 538.3213750844.

The spelling of 156000099 in words is "one hundred fifty-six million, ninety-nine", and thus it is an aban number.