145317532005 has 48 divisors (see below), whose sum is σ = 268272635904. Its totient is φ = 75407993280.

The previous prime is 145317531977. The next prime is 145317532007. The reversal of 145317532005 is 500235713541.

145317532005 is a `hidden beast` number, since 1 + 453 + 175 + 32 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 145317532005 - 2⁵ = 145317531973 is a prime.

It is a super-2 number, since 2×145317532005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145317532007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1571301 + ... + 1661210.

It is an arithmetic number, because the mean of its divisors is an integer number (5589013248).

Almost surely, 2^145317532005 is an apocalyptic number.

145317532005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145317532005 is a deficient number, since it is larger than the sum of its proper divisors (122955103899).

145317532005 is an equidigital number, since it uses as much as digits as its factorization.

145317532005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232568 (or 3232556 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 145317532005 in words is "one hundred forty-five billion, three hundred seventeen million, five hundred thirty-two thousand, five".