1233228551 has 4 divisors (see below), whose sum is σ = 1244142192. Its totient is φ = 1222314912.

The previous prime is 1233228533. The next prime is 1233228553. The reversal of 1233228551 is 1558223321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1233228551 - 2⁶ = 1233228487 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 (1233228553) 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, 5456651 + ... + 5456876.

It is an arithmetic number, because the mean of its divisors is an integer number (311035548).

Almost surely, 2^1233228551 is an apocalyptic number.

1233228551 is a deficient number, since it is larger than the sum of its proper divisors (10913641).

1233228551 is a wasteful number, since it uses less digits than its factorization.

1233228551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913640.

The product of its digits is 14400, while the sum is 32.

The square root of 1233228551 is about 35117.3539863128. The cubic root of 1233228551 is about 1072.3779039923.

The spelling of 1233228551 in words is "one billion, two hundred thirty-three million, two hundred twenty-eight thousand, five hundred fifty-one".