1243413351 has 12 divisors (see below), whose sum is σ = 1797817320. Its totient is φ = 828122640.

The previous prime is 1243413331. The next prime is 1243413359. The reversal of 1243413351 is 1533143421.

It is a happy number.

1243413351 is a `hidden beast` number, since 1 + 243 + 413 + 3 + 5 + 1 = 666.

It is not a de Polignac number, because 1243413351 - 2⁶ = 1243413287 is a prime.

It is a super-2 number, since 2×1243413351² = 3092153522890098402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243413359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58620 + ... + 76961.

It is an arithmetic number, because the mean of its divisors is an integer number (149818110).

Almost surely, 2^1243413351 is an apocalyptic number.

1243413351 is a deficient number, since it is larger than the sum of its proper divisors (554403969).

1243413351 is a wasteful number, since it uses less digits than its factorization.

1243413351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136606 (or 136603 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1243413351 is about 35262.0667431732. The cubic root of 1243413351 is about 1075.3219446045.

Adding to 1243413351 its reverse (1533143421), we get a palindrome (2776556772).

The spelling of 1243413351 in words is "one billion, two hundred forty-three million, four hundred thirteen thousand, three hundred fifty-one".