145250858 has 16 divisors (see below), whose sum is σ = 230519520. Its totient is φ = 68450256.

The previous prime is 145250843. The next prime is 145250881. The reversal of 145250858 is 858052541.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216 + ... + 17187.

It is an arithmetic number, because the mean of its divisors is an integer number (14407470).

Almost surely, 2^145250858 is an apocalyptic number.

145250858 is a deficient number, since it is larger than the sum of its proper divisors (85268662).

145250858 is a wasteful number, since it uses less digits than its factorization.

145250858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19621.

The product of its (nonzero) digits is 64000, while the sum is 38.

The square root of 145250858 is about 12052.0063889794. The cubic root of 145250858 is about 525.6615792632.

The spelling of 145250858 in words is "one hundred forty-five million, two hundred fifty thousand, eight hundred fifty-eight".