145000254 has 16 divisors (see below), whose sum is σ = 331429248. Its totient is φ = 41428632.

The previous prime is 145000249. The next prime is 145000277. The reversal of 145000254 is 452000541.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 145000254.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1726152 + ... + 1726235.

It is an arithmetic number, because the mean of its divisors is an integer number (20714328).

Almost surely, 2^145000254 is an apocalyptic number.

145000254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145000254 is an abundant number, since it is smaller than the sum of its proper divisors (186428994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145000254 is a wasteful number, since it uses less digits than its factorization.

145000254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452399.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 145000254 is about 12041.6051255636. The cubic root of 145000254 is about 525.3590940103.

Adding to 145000254 its reverse (452000541), we get a palindrome (597000795).

The spelling of 145000254 in words is "one hundred forty-five million, two hundred fifty-four", and thus it is an aban number.