145546515 has 24 divisors (see below), whose sum is σ = 258437088. Its totient is φ = 75730560.

The previous prime is 145546487. The next prime is 145546543. The reversal of 145546515 is 515645541.

145546515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145546487) and next prime (145546543).

It is not a de Polignac number, because 145546515 - 2⁸ = 145546259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145546515.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37599 + ... + 41288.

It is an arithmetic number, because the mean of its divisors is an integer number (10768212).

Almost surely, 2^145546515 is an apocalyptic number.

145546515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145546515 is a deficient number, since it is larger than the sum of its proper divisors (112890573).

145546515 is a wasteful number, since it uses less digits than its factorization.

145546515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78939 (or 78936 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 145546515 is about 12064.2660365229. The cubic root of 145546515 is about 526.0179975722.

The spelling of 145546515 in words is "one hundred forty-five million, five hundred forty-six thousand, five hundred fifteen".