145532516 has 12 divisors (see below), whose sum is σ = 257204220. Its totient is φ = 72045600.

The previous prime is 145532489. The next prime is 145532521. The reversal of 145532516 is 615235541.

It can be written as a sum of positive squares in 2 ways, for example, as 86304100 + 59228416 = 9290^2 + 7696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179711 + ... + 180518.

It is an arithmetic number, because the mean of its divisors is an integer number (21433685).

Almost surely, 2^145532516 is an apocalyptic number.

It is an amenable number.

145532516 is a deficient number, since it is larger than the sum of its proper divisors (111671704).

145532516 is a wasteful number, since it uses less digits than its factorization.

145532516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360334 (or 360332 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 145532516 is about 12063.6858380845. The cubic root of 145532516 is about 526.0011324895.

The spelling of 145532516 in words is "one hundred forty-five million, five hundred thirty-two thousand, five hundred sixteen".