145024425 has 120 divisors (see below), whose sum is σ = 331048256. Its totient is φ = 61119360.

The previous prime is 145024393. The next prime is 145024427. The reversal of 145024425 is 524420541.

It is not a de Polignac number, because 145024425 - 2⁵ = 145024393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (145024427) 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 119 ways as a sum of consecutive naturals, for example, 183882 + ... + 184668.

Almost surely, 2^145024425 is an apocalyptic number.

145024425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145024425 is an abundant number, since it is smaller than the sum of its proper divisors (186023831).

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

145024425 is a wasteful number, since it uses less digits than its factorization.

145024425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 145024425 is about 12042.6087290088. The cubic root of 145024425 is about 525.3882841871.

Adding to 145024425 its reverse (524420541), we get a palindrome (669444966).

The spelling of 145024425 in words is "one hundred forty-five million, twenty-four thousand, four hundred twenty-five".