1340763037 has 4 divisors (see below), whose sum is σ = 1340873820. Its totient is φ = 1340652256.

The previous prime is 1340763029. The next prime is 1340763049. The reversal of 1340763037 is 7303670431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7303670431 = 137 ⋅53311463.

It can be written as a sum of positive squares in 2 ways, for example, as 713210436 + 627552601 = 26706^2 + 25051^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340763037 - 2³ = 1340763029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340762993 and 1340763011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340793037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34648 + ... + 62305.

It is an arithmetic number, because the mean of its divisors is an integer number (335218455).

Almost surely, 2^1340763037 is an apocalyptic number.

It is an amenable number.

1340763037 is a deficient number, since it is larger than the sum of its proper divisors (110783).

1340763037 is an equidigital number, since it uses as much as digits as its factorization.

1340763037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110782.

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 1340763037 is about 36616.4312433640. The cubic root of 1340763037 is about 1102.6829925084.

The spelling of 1340763037 in words is "one billion, three hundred forty million, seven hundred sixty-three thousand, thirty-seven".