1234373138 has 4 divisors (see below), whose sum is σ = 1851559710. Its totient is φ = 617186568.

The previous prime is 1234373137. The next prime is 1234373141. The reversal of 1234373138 is 8313734321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8313734321 = 23687 ⋅350983.

It can be written as a sum of positive squares in only one way, i.e., 985143769 + 249229369 = 31387^2 + 15787^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1234373098 and 1234373107.

It is not an unprimeable number, because it can be changed into a prime (1234373137) 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 as a sum of consecutive naturals, namely, 308593283 + ... + 308593286.

Almost surely, 2^1234373138 is an apocalyptic number.

1234373138 is a deficient number, since it is larger than the sum of its proper divisors (617186572).

1234373138 is an equidigital number, since it uses as much as digits as its factorization.

1234373138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617186571.

The product of its digits is 36288, while the sum is 35.

The square root of 1234373138 is about 35133.6468075832. The cubic root of 1234373138 is about 1072.7095673777.

The spelling of 1234373138 in words is "one billion, two hundred thirty-four million, three hundred seventy-three thousand, one hundred thirty-eight".