145505258 has 8 divisors (see below), whose sum is σ = 225298560. Its totient is φ = 70405740.

The previous prime is 145505257. The next prime is 145505273. The reversal of 145505258 is 852505541.

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

It is not an unprimeable number, because it can be changed into a prime (145505257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173368 + ... + 1173491.

It is an arithmetic number, because the mean of its divisors is an integer number (28162320).

Almost surely, 2^145505258 is an apocalyptic number.

145505258 is a deficient number, since it is larger than the sum of its proper divisors (79793302).

145505258 is a wasteful number, since it uses less digits than its factorization.

145505258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346892.

The product of its (nonzero) digits is 40000, while the sum is 35.

The square root of 145505258 is about 12062.5560309579. The cubic root of 145505258 is about 525.9682907244.

The spelling of 145505258 in words is "one hundred forty-five million, five hundred five thousand, two hundred fifty-eight".