1172242533 has 24 divisors (see below), whose sum is σ = 1983463200. Its totient is φ = 608956320.

The previous prime is 1172242529. The next prime is 1172242543. The reversal of 1172242533 is 3352422711.

It is not a de Polignac number, because 1172242533 - 2² = 1172242529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1172242533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172242543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360858 + ... + 364091.

It is an arithmetic number, because the mean of its divisors is an integer number (82644300).

Almost surely, 2^1172242533 is an apocalyptic number.

It is an amenable number.

1172242533 is a deficient number, since it is larger than the sum of its proper divisors (811220667).

1172242533 is a wasteful number, since it uses less digits than its factorization.

1172242533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724977 (or 724970 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 1172242533 is about 34238.0275862965. The cubic root of 1172242533 is about 1054.4010385379.

The spelling of 1172242533 in words is "one billion, one hundred seventy-two million, two hundred forty-two thousand, five hundred thirty-three".