7133998369 has 3 divisors (see below), whose sum is σ = 7134082833. Its totient is φ = 7133913906.

The previous prime is 7133998363. The next prime is 7133998423. The reversal of 7133998369 is 9638993317.

The square root of 7133998369 is 84463.

It is a perfect power (a square), and thus also a powerful number.

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: 9638993317 = 1303 ⋅7397539.

It is a de Polignac number, because none of the positive numbers 2^k-7133998369 is a prime.

It is a super-2 number, since 2×7133998369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7133998363) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 42232 + ... + 126694.

It is an arithmetic number, because the mean of its divisors is an integer number (2378027611).

Almost surely, 2^7133998369 is an apocalyptic number.

7133998369 is the 84463-rd square number.

7133998369 is the 42232-nd centered octagonal number.

It is an amenable number.

7133998369 is a deficient number, since it is larger than the sum of its proper divisors (84464).

7133998369 is an frugal number, since it uses more digits than its factorization.

7133998369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168926 (or 84463 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 58.

The cubic root of 7133998369 is about 1925.0602887960.

The spelling of 7133998369 in words is "seven billion, one hundred thirty-three million, nine hundred ninety-eight thousand, three hundred sixty-nine".