1312242437 has 8 divisors (see below), whose sum is σ = 1493778240. Its totient is φ = 1141080160.

The previous prime is 1312242403. The next prime is 1312242457. The reversal of 1312242437 is 7342422131.

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

It is not a de Polignac number, because 1312242437 - 2¹² = 1312238341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312242457) 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, 2593112 + ... + 2593617.

It is an arithmetic number, because the mean of its divisors is an integer number (186722280).

Almost surely, 2^1312242437 is an apocalyptic number.

It is an amenable number.

1312242437 is a deficient number, since it is larger than the sum of its proper divisors (181535803).

1312242437 is a wasteful number, since it uses less digits than its factorization.

1312242437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186763.

The product of its digits is 8064, while the sum is 29.

The square root of 1312242437 is about 36224.8869839507. The cubic root of 1312242437 is about 1094.8081611064.

Adding to 1312242437 its reverse (7342422131), we get a palindrome (8654664568).

The spelling of 1312242437 in words is "one billion, three hundred twelve million, two hundred forty-two thousand, four hundred thirty-seven".