1318962749 has 8 divisors (see below), whose sum is σ = 1438402560. Its totient is φ = 1202091696.

The previous prime is 1318962727. The next prime is 1318962763. The reversal of 1318962749 is 9472698131.

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

It is not a de Polignac number, because 1318962749 - 2²⁸ = 1050527293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1318962697 and 1318962706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318962709) 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, 641117 + ... + 643170.

It is an arithmetic number, because the mean of its divisors is an integer number (179800320).

Almost surely, 2^1318962749 is an apocalyptic number.

It is an amenable number.

1318962749 is a deficient number, since it is larger than the sum of its proper divisors (119439811).

1318962749 is a wasteful number, since it uses less digits than its factorization.

1318962749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284379.

The product of its digits is 653184, while the sum is 50.

The square root of 1318962749 is about 36317.5267467376. The cubic root of 1318962749 is about 1096.6739058453.

The spelling of 1318962749 in words is "one billion, three hundred eighteen million, nine hundred sixty-two thousand, seven hundred forty-nine".