72233061 has 4 divisors (see below), whose sum is σ = 96310752. Its totient is φ = 48155372.

The previous prime is 72233059. The next prime is 72233071. The reversal of 72233061 is 16033227.

72233061 = 2829² + 2830² + ... + 2837².

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.

It is a cyclic number.

It is not a de Polignac number, because 72233061 - 2¹ = 72233059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72233071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12038841 + ... + 12038846.

It is an arithmetic number, because the mean of its divisors is an integer number (24077688).

Almost surely, 2^72233061 is an apocalyptic number.

It is an amenable number.

72233061 is a deficient number, since it is larger than the sum of its proper divisors (24077691).

72233061 is a wasteful number, since it uses less digits than its factorization.

72233061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24077690.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 72233061 is about 8499.0035298263. The cubic root of 72233061 is about 416.4651574592.

Adding to 72233061 its reverse (16033227), we get a palindrome (88266288).

The spelling of 72233061 in words is "seventy-two million, two hundred thirty-three thousand, sixty-one".