145022515 has 8 divisors (see below), whose sum is σ = 189847728. Its totient is φ = 105470880.

The previous prime is 145022513. The next prime is 145022543. The reversal of 145022515 is 515220541.

145022515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145022515 - 2¹ = 145022513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145022515.

It is not an unprimeable number, because it can be changed into a prime (145022513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318332 + ... + 1318441.

It is an arithmetic number, because the mean of its divisors is an integer number (23730966).

Almost surely, 2^145022515 is an apocalyptic number.

145022515 is a deficient number, since it is larger than the sum of its proper divisors (44825213).

145022515 is a wasteful number, since it uses less digits than its factorization.

145022515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636789.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 145022515 is about 12042.5294269933. The cubic root of 145022515 is about 525.3859776882.

The spelling of 145022515 in words is "one hundred forty-five million, twenty-two thousand, five hundred fifteen".