145012254 has 32 divisors (see below), whose sum is σ = 301234560. Its totient is φ = 46503072.

The previous prime is 145012253. The next prime is 145012271. The reversal of 145012254 is 452210541.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145012253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13092 + ... + 21480.

It is an arithmetic number, because the mean of its divisors is an integer number (9413580).

Almost surely, 2^145012254 is an apocalyptic number.

145012254 is an abundant number, since it is smaller than the sum of its proper divisors (156222306).

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

145012254 is a wasteful number, since it uses less digits than its factorization.

145012254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145012254 is about 12042.1033876977. The cubic root of 145012254 is about 525.3735862498.

Adding to 145012254 its reverse (452210541), we get a palindrome (597222795).

The spelling of 145012254 in words is "one hundred forty-five million, twelve thousand, two hundred fifty-four".