145090252 has 6 divisors (see below), whose sum is σ = 253907948. Its totient is φ = 72545124.

The previous prime is 145090243. The next prime is 145090301. The reversal of 145090252 is 252090541.

145090252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145090252.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18136278 + ... + 18136285.

Almost surely, 2^145090252 is an apocalyptic number.

It is an amenable number.

145090252 is a deficient number, since it is larger than the sum of its proper divisors (108817696).

145090252 is a wasteful number, since it uses less digits than its factorization.

145090252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36272567 (or 36272565 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 145090252 is about 12045.3415061591. The cubic root of 145090252 is about 525.4677639097.

The spelling of 145090252 in words is "one hundred forty-five million, ninety thousand, two hundred fifty-two".