1302231481 has 8 divisors (see below), whose sum is σ = 1384344000. Its totient is φ = 1221476400.

The previous prime is 1302231449. The next prime is 1302231509. The reversal of 1302231481 is 1841322031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1302231481 - 2⁵ = 1302231449 is a prime.

It is a super-2 number, since 2×1302231481² = 3391613660214906722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302231881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337381 + ... + 341218.

It is an arithmetic number, because the mean of its divisors is an integer number (173043000).

Almost surely, 2^1302231481 is an apocalyptic number.

It is an amenable number.

1302231481 is a deficient number, since it is larger than the sum of its proper divisors (82112519).

1302231481 is a wasteful number, since it uses less digits than its factorization.

1302231481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678719.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1302231481 is about 36086.4445602500. Note that the first 3 decimals coincide. The cubic root of 1302231481 is about 1092.0169934002.

The spelling of 1302231481 in words is "one billion, three hundred two million, two hundred thirty-one thousand, four hundred eighty-one".