1318698452 has 12 divisors (see below), whose sum is σ = 2308162080. Its totient is φ = 659223576.

The previous prime is 1318698443. The next prime is 1318698461. The reversal of 1318698452 is 2548968131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1318698443) and next prime (1318698461).

It is a junction number, because it is equal to n+sod(n) for n = 1318698397 and 1318698406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5408 + ... + 51639.

It is an arithmetic number, because the mean of its divisors is an integer number (192346840).

Almost surely, 2^1318698452 is an apocalyptic number.

It is an amenable number.

1318698452 is a deficient number, since it is larger than the sum of its proper divisors (989463628).

1318698452 is a wasteful number, since it uses less digits than its factorization.

1318698452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62830 (or 62828 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 1318698452 is about 36313.8878667652. The cubic root of 1318698452 is about 1096.6006495471.

The spelling of 1318698452 in words is "one billion, three hundred eighteen million, six hundred ninety-eight thousand, four hundred fifty-two".