145669516 has 12 divisors (see below), whose sum is σ = 255414600. Its totient is φ = 72693920.

The previous prime is 145669507. The next prime is 145669541. The reversal of 145669516 is 615966541.

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, 32866 + ... + 37033.

It is an arithmetic number, because the mean of its divisors is an integer number (21284550).

Almost surely, 2^145669516 is an apocalyptic number.

It is an amenable number.

145669516 is a deficient number, since it is larger than the sum of its proper divisors (109745084).

145669516 is a wasteful number, since it uses less digits than its factorization.

145669516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70424 (or 70422 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 145669516 is about 12069.3627006566. The cubic root of 145669516 is about 526.1661346864.

The spelling of 145669516 in words is "one hundred forty-five million, six hundred sixty-nine thousand, five hundred sixteen".