145317361 has 8 divisors (see below), whose sum is σ = 169210944. Its totient is φ = 122207280.

The previous prime is 145317307. The next prime is 145317371. The reversal of 145317361 is 163713541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145317361 - 2⁷ = 145317233 is a prime.

It is a super-2 number, since 2×145317361² = 42234270816008642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145317371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195475 + ... + 196216.

It is an arithmetic number, because the mean of its divisors is an integer number (21151368).

Almost surely, 2^145317361 is an apocalyptic number.

It is an amenable number.

145317361 is a deficient number, since it is larger than the sum of its proper divisors (23893583).

145317361 is an equidigital number, since it uses as much as digits as its factorization.

145317361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391751.

The product of its digits is 7560, while the sum is 31.

The square root of 145317361 is about 12054.7650744426. The cubic root of 145317361 is about 525.7417916136.

The spelling of 145317361 in words is "one hundred forty-five million, three hundred seventeen thousand, three hundred sixty-one".