1312542434 has 32 divisors (see below), whose sum is σ = 2277417216. Its totient is φ = 555724800.

The previous prime is 1312542391. The next prime is 1312542461. The reversal of 1312542434 is 4342452131.

It is a junction number, because it is equal to n+sod(n) for n = 1312542397 and 1312542406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406394 + ... + 409610.

It is an arithmetic number, because the mean of its divisors is an integer number (71169288).

Almost surely, 2^1312542434 is an apocalyptic number.

1312542434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1312542434 is a deficient number, since it is larger than the sum of its proper divisors (964874782).

1312542434 is a wasteful number, since it uses less digits than its factorization.

1312542434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570.

The product of its digits is 11520, while the sum is 29.

The square root of 1312542434 is about 36229.0275055790. The cubic root of 1312542434 is about 1094.8915842426.

Adding to 1312542434 its reverse (4342452131), we get a palindrome (5654994565).

The spelling of 1312542434 in words is "one billion, three hundred twelve million, five hundred forty-two thousand, four hundred thirty-four".