145515602 has 8 divisors (see below), whose sum is σ = 218329356. Its totient is φ = 72739152.

The previous prime is 145515599. The next prime is 145515647. The reversal of 145515602 is 206515541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111281401 + 34234201 = 10549^2 + 5851^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568 + ... + 17660.

Almost surely, 2^145515602 is an apocalyptic number.

145515602 is a deficient number, since it is larger than the sum of its proper divisors (72813754).

145515602 is a wasteful number, since it uses less digits than its factorization.

145515602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652.

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

The square root of 145515602 is about 12062.9847881857. The cubic root of 145515602 is about 525.9807541619.

The spelling of 145515602 in words is "one hundred forty-five million, five hundred fifteen thousand, six hundred two".