816233541 has 4 divisors (see below), whose sum is σ = 1088311392. Its totient is φ = 544155692.

The previous prime is 816233531. The next prime is 816233567. The reversal of 816233541 is 145332618.

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 816233541 - 2⁷ = 816233413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816233531) 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, 136038921 + ... + 136038926.

It is an arithmetic number, because the mean of its divisors is an integer number (272077848).

Almost surely, 2^816233541 is an apocalyptic number.

It is an amenable number.

816233541 is a deficient number, since it is larger than the sum of its proper divisors (272077851).

816233541 is a wasteful number, since it uses less digits than its factorization.

816233541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272077850.

The product of its digits is 17280, while the sum is 33.

The square root of 816233541 is about 28569.8012068688. The cubic root of 816233541 is about 934.5548858868.

The spelling of 816233541 in words is "eight hundred sixteen million, two hundred thirty-three thousand, five hundred forty-one".