145660315 has 4 divisors (see below), whose sum is σ = 174792384. Its totient is φ = 116528248.

The previous prime is 145660313. The next prime is 145660343. The reversal of 145660315 is 513066541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145660315 - 2¹ = 145660313 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145660313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14566027 + ... + 14566036.

It is an arithmetic number, because the mean of its divisors is an integer number (43698096).

Almost surely, 2^145660315 is an apocalyptic number.

145660315 is a deficient number, since it is larger than the sum of its proper divisors (29132069).

145660315 is an equidigital number, since it uses as much as digits as its factorization.

145660315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29132068.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 145660315 is about 12068.9815228958. The cubic root of 145660315 is about 526.1550562840.

The spelling of 145660315 in words is "one hundred forty-five million, six hundred sixty thousand, three hundred fifteen".