145317333609 has 32 divisors (see below), whose sum is σ = 249712189440. Its totient is φ = 81799088976.

The previous prime is 145317333583. The next prime is 145317333617. The reversal of 145317333609 is 906333713541.

145317333609 is a `hidden beast` number, since 1 + 4 + 5 + 3 + 1 + 7 + 3 + 33 + 609 = 666.

It is not a de Polignac number, because 145317333609 - 2⁸ = 145317333353 is a prime.

It is a super-2 number, since 2×145317333609² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145317333619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5725209 + ... + 5750534.

It is an arithmetic number, because the mean of its divisors is an integer number (7803505920).

Almost surely, 2^145317333609 is an apocalyptic number.

It is an amenable number.

145317333609 is a deficient number, since it is larger than the sum of its proper divisors (104394855831).

145317333609 is a wasteful number, since it uses less digits than its factorization.

145317333609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475826 (or 11475820 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The spelling of 145317333609 in words is "one hundred forty-five billion, three hundred seventeen million, three hundred thirty-three thousand, six hundred nine".