1140346523 has 4 divisors (see below), whose sum is σ = 1141178448. Its totient is φ = 1139514600.

The previous prime is 1140346511. The next prime is 1140346547. The reversal of 1140346523 is 3256430411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140346523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140346573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413903 + ... + 416648.

It is an arithmetic number, because the mean of its divisors is an integer number (285294612).

Almost surely, 2^1140346523 is an apocalyptic number.

1140346523 is a deficient number, since it is larger than the sum of its proper divisors (831925).

1140346523 is an equidigital number, since it uses as much as digits as its factorization.

1140346523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831924.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1140346523 is about 33769.0172051246. The cubic root of 1140346523 is about 1044.7497620491.

Adding to 1140346523 its reverse (3256430411), we get a palindrome (4396776934).

The spelling of 1140346523 in words is "one billion, one hundred forty million, three hundred forty-six thousand, five hundred twenty-three".