145501522515 has 48 divisors (see below), whose sum is σ = 254331788256. Its totient is φ = 76948185600.

The previous prime is 145501522447. The next prime is 145501522541. The reversal of 145501522515 is 515225105541.

145501522515 is a `hidden beast` number, since 1 + 4 + 550 + 1 + 52 + 2 + 51 + 5 = 666.

It is not a de Polignac number, because 145501522515 - 2¹¹ = 145501520467 is a prime.

It is a super-3 number, since 3×145501522515³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145501522515.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2800575 + ... + 2852055.

It is an arithmetic number, because the mean of its divisors is an integer number (5298578922).

Almost surely, 2^145501522515 is an apocalyptic number.

145501522515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145501522515 is a deficient number, since it is larger than the sum of its proper divisors (108830265741).

145501522515 is a wasteful number, since it uses less digits than its factorization.

145501522515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52020 (or 52017 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 36.

The spelling of 145501522515 in words is "one hundred forty-five billion, five hundred one million, five hundred twenty-two thousand, five hundred fifteen".