145203556 has 12 divisors (see below), whose sum is σ = 254291968. Its totient is φ = 72548712.

The previous prime is 145203533. The next prime is 145203599. The reversal of 145203556 is 655302541.

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, 6756 + ... + 18331.

Almost surely, 2^145203556 is an apocalyptic number.

It is an amenable number.

145203556 is a deficient number, since it is larger than the sum of its proper divisors (109088412).

145203556 is a wasteful number, since it uses less digits than its factorization.

145203556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26538 (or 26536 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 145203556 is about 12050.0438173477. The cubic root of 145203556 is about 525.6045112270.

The spelling of 145203556 in words is "one hundred forty-five million, two hundred three thousand, five hundred fifty-six".