145205315 has 16 divisors (see below), whose sum is σ = 186431520. Its totient is φ = 108241920.

The previous prime is 145205311. The next prime is 145205321. The reversal of 145205315 is 513502541.

It is not a de Polignac number, because 145205315 - 2² = 145205311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145205311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6734 + ... + 18323.

It is an arithmetic number, because the mean of its divisors is an integer number (11651970).

Almost surely, 2^145205315 is an apocalyptic number.

145205315 is a deficient number, since it is larger than the sum of its proper divisors (41226205).

145205315 is a wasteful number, since it uses less digits than its factorization.

145205315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25142.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 145205315 is about 12050.1168044131. The cubic root of 145205315 is about 525.6066336144.

Adding to 145205315 its reverse (513502541), we get a palindrome (658707856).

The spelling of 145205315 in words is "one hundred forty-five million, two hundred five thousand, three hundred fifteen".