1233072138 has 32 divisors (see below), whose sum is σ = 2543002560. Its totient is φ = 398304000.

The previous prime is 1233072133. The next prime is 1233072161. The reversal of 1233072138 is 8312703321.

It is not an unprimeable number, because it can be changed into a prime (1233072133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44658 + ... + 66786.

It is an arithmetic number, because the mean of its divisors is an integer number (79468830).

Almost surely, 2^1233072138 is an apocalyptic number.

1233072138 is an abundant number, since it is smaller than the sum of its proper divisors (1309930422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1233072138 is a wasteful number, since it uses less digits than its factorization.

1233072138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22422.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1233072138 is about 35115.1269113469. The cubic root of 1233072138 is about 1072.3325647520.

Adding to 1233072138 its reverse (8312703321), we get a palindrome (9545775459).

The spelling of 1233072138 in words is "one billion, two hundred thirty-three million, seventy-two thousand, one hundred thirty-eight".