1145635123 has 8 divisors (see below), whose sum is σ = 1162030592. Its totient is φ = 1129355136.

The previous prime is 1145635109. The next prime is 1145635171. The reversal of 1145635123 is 3215365411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145635123 - 2¹³ = 1145626931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145635103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8790 + ... + 48667.

It is an arithmetic number, because the mean of its divisors is an integer number (145253824).

Almost surely, 2^1145635123 is an apocalyptic number.

1145635123 is a deficient number, since it is larger than the sum of its proper divisors (16395469).

1145635123 is a wasteful number, since it uses less digits than its factorization.

1145635123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57741.

The product of its digits is 10800, while the sum is 31.

The square root of 1145635123 is about 33847.2321320370. The cubic root of 1145635123 is about 1046.3623549147.

The spelling of 1145635123 in words is "one billion, one hundred forty-five million, six hundred thirty-five thousand, one hundred twenty-three".