1254251321 has 8 divisors (see below), whose sum is σ = 1272885120. Its totient is φ = 1235686608.

The previous prime is 1254251311. The next prime is 1254251359. The reversal of 1254251321 is 1231524521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1254251321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254251311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19895 + ... + 53891.

It is an arithmetic number, because the mean of its divisors is an integer number (159110640).

Almost surely, 2^1254251321 is an apocalyptic number.

It is an amenable number.

1254251321 is a deficient number, since it is larger than the sum of its proper divisors (18633799).

1254251321 is an equidigital number, since it uses as much as digits as its factorization.

1254251321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34543.

The product of its digits is 2400, while the sum is 26.

The square root of 1254251321 is about 35415.4107840076. The cubic root of 1254251321 is about 1078.4371889320.

Adding to 1254251321 its reverse (1231524521), we get a palindrome (2485775842).

The spelling of 1254251321 in words is "one billion, two hundred fifty-four million, two hundred fifty-one thousand, three hundred twenty-one".