145425254 has 32 divisors (see below), whose sum is σ = 240589440. Its totient is φ = 65520000.

The previous prime is 145425239. The next prime is 145425257. The reversal of 145425254 is 452524541.

It is a super-2 number, since 2×145425254² = 42297009001929032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 145425254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145425257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207104 + ... + 207804.

It is an arithmetic number, because the mean of its divisors is an integer number (7518420).

Almost surely, 2^145425254 is an apocalyptic number.

145425254 is a deficient number, since it is larger than the sum of its proper divisors (95164186).

145425254 is a wasteful number, since it uses less digits than its factorization.

145425254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 32000, while the sum is 32.

The square root of 145425254 is about 12059.2393624142. The cubic root of 145425254 is about 525.8718743191.

Adding to 145425254 its reverse (452524541), we get a palindrome (597949795).

The spelling of 145425254 in words is "one hundred forty-five million, four hundred twenty-five thousand, two hundred fifty-four".