145993636 has 12 divisors (see below), whose sum is σ = 255575628. Its totient is φ = 72972032.

The previous prime is 145993621. The next prime is 145993651. The reversal of 145993636 is 636399541.

It is an interprime number because it is at equal distance from previous prime (145993621) and next prime (145993651).

It can be written as a sum of positive squares in 2 ways, for example, as 5428900 + 140564736 = 2330^2 + 11856^2 .

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, 15480 + ... + 23056.

It is an arithmetic number, because the mean of its divisors is an integer number (21297969).

Almost surely, 2^145993636 is an apocalyptic number.

It is an amenable number.

145993636 is a deficient number, since it is larger than the sum of its proper divisors (109581992).

145993636 is a wasteful number, since it uses less digits than its factorization.

145993636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12398 (or 12396 counting only the distinct ones).

The product of its digits is 524880, while the sum is 46.

The square root of 145993636 is about 12082.7826265310. The cubic root of 145993636 is about 526.5560919031.

The spelling of 145993636 in words is "one hundred forty-five million, nine hundred ninety-three thousand, six hundred thirty-six".