145617315 has 16 divisors (see below), whose sum is σ = 233151648. Its totient is φ = 77607936.

The previous prime is 145617313. The next prime is 145617371. The reversal of 145617315 is 513716541.

It is not a de Polignac number, because 145617315 - 2¹ = 145617313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145617313) 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, 27849 + ... + 32661.

It is an arithmetic number, because the mean of its divisors is an integer number (14571978).

Almost surely, 2^145617315 is an apocalyptic number.

145617315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145617315 is a deficient number, since it is larger than the sum of its proper divisors (87534333).

145617315 is a wasteful number, since it uses less digits than its factorization.

145617315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6838.

The product of its digits is 12600, while the sum is 33.

The square root of 145617315 is about 12067.1999651949. The cubic root of 145617315 is about 526.1032762364.

The spelling of 145617315 in words is "one hundred forty-five million, six hundred seventeen thousand, three hundred fifteen".