1123625434 has 4 divisors (see below), whose sum is σ = 1685438154. Its totient is φ = 561812716.

The previous prime is 1123625357. The next prime is 1123625449. The reversal of 1123625434 is 4345263211.

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

It can be written as a sum of positive squares in only one way, i.e., 1093955625 + 29669809 = 33075^2 + 5447^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1123625396 and 1123625405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280906357 + ... + 280906360.

Almost surely, 2^1123625434 is an apocalyptic number.

1123625434 is a deficient number, since it is larger than the sum of its proper divisors (561812720).

1123625434 is an equidigital number, since it uses as much as digits as its factorization.

1123625434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561812719.

The product of its digits is 17280, while the sum is 31.

The square root of 1123625434 is about 33520.5225794587. The cubic root of 1123625434 is about 1039.6181518536.

Adding to 1123625434 its reverse (4345263211), we get a palindrome (5468888645).

The spelling of 1123625434 in words is "one billion, one hundred twenty-three million, six hundred twenty-five thousand, four hundred thirty-four".