1254725240 has 16 divisors (see below), whose sum is σ = 2823131880. Its totient is φ = 501890080.

The previous prime is 1254725237. The next prime is 1254725243. The reversal of 1254725240 is 425274521.

It is an interprime number because it is at equal distance from previous prime (1254725237) and next prime (1254725243).

It is a junction number, because it is equal to n+sod(n) for n = 1254725197 and 1254725206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254725243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15684026 + ... + 15684105.

Almost surely, 2^1254725240 is an apocalyptic number.

1254725240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254725240 is an abundant number, since it is smaller than the sum of its proper divisors (1568406640).

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

1254725240 is a wasteful number, since it uses less digits than its factorization.

1254725240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31368142 (or 31368138 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 1254725240 is about 35422.1010105273. The cubic root of 1254725240 is about 1078.5730010315.

Adding to 1254725240 its reverse (425274521), we get a palindrome (1679999761).

The spelling of 1254725240 in words is "one billion, two hundred fifty-four million, seven hundred twenty-five thousand, two hundred forty".