1451423025 has 144 divisors (see below), whose sum is σ = 3004026480. Its totient is φ = 665856000.

The previous prime is 1451423021. The next prime is 1451423033. The reversal of 1451423025 is 5203241541.

It can be written as a sum of positive squares in 24 ways, for example, as 716579361 + 734843664 = 26769^2 + 27108^2 .

It is not a de Polignac number, because 1451423025 - 2² = 1451423021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1451423025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451423021) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14370475 + ... + 14370575.

It is an arithmetic number, because the mean of its divisors is an integer number (20861295).

Almost surely, 2^1451423025 is an apocalyptic number.

1451423025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1451423025 is an abundant number, since it is smaller than the sum of its proper divisors (1552603455).

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

1451423025 is a wasteful number, since it uses less digits than its factorization.

1451423025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 139 counting only the distinct ones).

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

The square root of 1451423025 is about 38097.5461808238. The cubic root of 1451423025 is about 1132.2213398570.

Adding to 1451423025 its reverse (5203241541), we get a palindrome (6654664566).

The spelling of 1451423025 in words is "one billion, four hundred fifty-one million, four hundred twenty-three thousand, twenty-five".