1431342497 has 4 divisors (see below), whose sum is σ = 1541445780. Its totient is φ = 1321239216.

The previous prime is 1431342469. The next prime is 1431342499. The reversal of 1431342497 is 7942431341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7942431341 = 13 ⋅610956257.

It can be written as a sum of positive squares in 2 ways, for example, as 449397601 + 981944896 = 21199^2 + 31336^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431342497 - 2¹² = 1431338401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431342497.

It is not an unprimeable number, because it can be changed into a prime (1431342499) 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 3 ways as a sum of consecutive naturals, for example, 55051622 + ... + 55051647.

It is an arithmetic number, because the mean of its divisors is an integer number (385361445).

Almost surely, 2^1431342497 is an apocalyptic number.

It is an amenable number.

1431342497 is a deficient number, since it is larger than the sum of its proper divisors (110103283).

1431342497 is a wasteful number, since it uses less digits than its factorization.

1431342497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110103282.

The product of its digits is 72576, while the sum is 38.

The square root of 1431342497 is about 37833.0873310651. The cubic root of 1431342497 is about 1126.9756224212.

The spelling of 1431342497 in words is "one billion, four hundred thirty-one million, three hundred forty-two thousand, four hundred ninety-seven".