20133547349 has 4 divisors (see below), whose sum is σ = 20134583040. Its totient is φ = 20132511660.

The previous prime is 20133547327. The next prime is 20133547361. The reversal of 20133547349 is 94374533102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94374533102 = 2 ⋅47187266551.

It is a cyclic number.

It is not a de Polignac number, because 20133547349 - 2²⁴ = 20116770133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133549349) 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, 488117 + ... + 527754.

It is an arithmetic number, because the mean of its divisors is an integer number (5033645760).

Almost surely, 2^20133547349 is an apocalyptic number.

It is an amenable number.

20133547349 is a deficient number, since it is larger than the sum of its proper divisors (1035691).

20133547349 is a wasteful number, since it uses less digits than its factorization.

20133547349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035690.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 20133547349 in words is "twenty billion, one hundred thirty-three million, five hundred forty-seven thousand, three hundred forty-nine".