145123254 has 96 divisors (see below), whose sum is σ = 355212000. Its totient is φ = 42550272.

The previous prime is 145123247. The next prime is 145123283. The reversal of 145123254 is 452321541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 633612 + ... + 633840.

It is an arithmetic number, because the mean of its divisors is an integer number (3700125).

Almost surely, 2^145123254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145123254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177606000).

145123254 is an abundant number, since it is smaller than the sum of its proper divisors (210088746).

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

145123254 is a wasteful number, since it uses less digits than its factorization.

145123254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 379 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 145123254 is about 12046.7113354641. The cubic root of 145123254 is about 525.5076015791.

Adding to 145123254 its reverse (452321541), we get a palindrome (597444795).

It can be divided in two parts, 14512 and 3254, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 145123254 in words is "one hundred forty-five million, one hundred twenty-three thousand, two hundred fifty-four".