1134651623 has 4 divisors (see below), whose sum is σ = 1296744720. Its totient is φ = 972558528.

The previous prime is 1134651619. The next prime is 1134651643. The reversal of 1134651623 is 3261564311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3261564311 = 163 ⋅20009597.

It is a cyclic number.

It is not a de Polignac number, because 1134651623 - 2² = 1134651619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1134651623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1134651643) 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, 81046538 + ... + 81046551.

It is an arithmetic number, because the mean of its divisors is an integer number (324186180).

Almost surely, 2^1134651623 is an apocalyptic number.

1134651623 is a deficient number, since it is larger than the sum of its proper divisors (162093097).

1134651623 is an equidigital number, since it uses as much as digits as its factorization.

1134651623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162093096.

The product of its digits is 12960, while the sum is 32.

The square root of 1134651623 is about 33684.5902899234. The cubic root of 1134651623 is about 1043.0076958642.

The spelling of 1134651623 in words is "one billion, one hundred thirty-four million, six hundred fifty-one thousand, six hundred twenty-three".