153423009 has 12 divisors (see below), whose sum is σ = 222738516. Its totient is φ = 101761632.

The previous prime is 153423007. The next prime is 153423013. The reversal of 153423009 is 900324351.

153423009 is a `hidden beast` number, since 15 + 342 + 300 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 76475025 + 76947984 = 8745^2 + 8772^2 .

It is not a de Polignac number, because 153423009 - 2¹ = 153423007 is a prime.

It is a super-2 number, since 2×153423009² = 47077239381228162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153423007) 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, 41494 + ... + 45039.

It is an arithmetic number, because the mean of its divisors is an integer number (18561543).

Almost surely, 2^153423009 is an apocalyptic number.

It is an amenable number.

153423009 is a deficient number, since it is larger than the sum of its proper divisors (69315507).

153423009 is a wasteful number, since it uses less digits than its factorization.

153423009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86736 (or 86733 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 153423009 is about 12386.4041997668. The cubic root of 153423009 is about 535.3405802994.

The spelling of 153423009 in words is "one hundred fifty-three million, four hundred twenty-three thousand, nine".