1293431973 has 32 divisors (see below), whose sum is σ = 1835957760. Its totient is φ = 807693120.

The previous prime is 1293431947. The next prime is 1293431999. The reversal of 1293431973 is 3791343921.

It is an interprime number because it is at equal distance from previous prime (1293431947) and next prime (1293431999).

It is not a de Polignac number, because 1293431973 - 2¹⁴ = 1293415589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293431173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2919490 + ... + 2919932.

It is an arithmetic number, because the mean of its divisors is an integer number (57373680).

Almost surely, 2^1293431973 is an apocalyptic number.

It is an amenable number.

1293431973 is a deficient number, since it is larger than the sum of its proper divisors (542525787).

1293431973 is a wasteful number, since it uses less digits than its factorization.

1293431973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its digits is 122472, while the sum is 42.

The square root of 1293431973 is about 35964.3152722251. The cubic root of 1293431973 is about 1089.5517537992.

The spelling of 1293431973 in words is "one billion, two hundred ninety-three million, four hundred thirty-one thousand, nine hundred seventy-three".