145314515 has 16 divisors (see below), whose sum is σ = 180376320. Its totient is φ = 112268160.

The previous prime is 145314509. The next prime is 145314517. The reversal of 145314515 is 515413541.

It is not a de Polignac number, because 145314515 - 2²⁰ = 144265939 is a prime.

It is a super-2 number, since 2×145314515² = 42232616539370450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145314517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135401 + ... + 136469.

It is an arithmetic number, because the mean of its divisors is an integer number (11273520).

Almost surely, 2^145314515 is an apocalyptic number.

145314515 is a deficient number, since it is larger than the sum of its proper divisors (35061805).

145314515 is a wasteful number, since it uses less digits than its factorization.

145314515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its digits is 6000, while the sum is 29.

The square root of 145314515 is about 12054.6470292581. The cubic root of 145314515 is about 525.7383594224.

The spelling of 145314515 in words is "one hundred forty-five million, three hundred fourteen thousand, five hundred fifteen".