1312221254 has 8 divisors (see below), whose sum is σ = 2053911600. Its totient is φ = 627584056.

The previous prime is 1312221241. The next prime is 1312221259. The reversal of 1312221254 is 4521222131.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312221259) 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, 14263229 + ... + 14263320.

It is an arithmetic number, because the mean of its divisors is an integer number (256738950).

Almost surely, 2^1312221254 is an apocalyptic number.

1312221254 is a deficient number, since it is larger than the sum of its proper divisors (741690346).

1312221254 is a wasteful number, since it uses less digits than its factorization.

1312221254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28526574.

The product of its digits is 960, while the sum is 23.

The square root of 1312221254 is about 36224.5946009062. The cubic root of 1312221254 is about 1094.8022700593.

Adding to 1312221254 its reverse (4521222131), we get a palindrome (5833443385).

The spelling of 1312221254 in words is "one billion, three hundred twelve million, two hundred twenty-one thousand, two hundred fifty-four".