1140430403 has 4 divisors (see below), whose sum is σ = 1303349040. Its totient is φ = 977511768.

The previous prime is 1140430381. The next prime is 1140430427. The reversal of 1140430403 is 3040340411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1140430403 - 2²² = 1136236099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140430433) 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, 81459308 + ... + 81459321.

It is an arithmetic number, because the mean of its divisors is an integer number (325837260).

Almost surely, 2^1140430403 is an apocalyptic number.

1140430403 is a deficient number, since it is larger than the sum of its proper divisors (162918637).

1140430403 is an equidigital number, since it uses as much as digits as its factorization.

1140430403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162918636.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1140430403 is about 33770.2591491389. The cubic root of 1140430403 is about 1044.7753774972.

Adding to 1140430403 its reverse (3040340411), we get a palindrome (4180770814).

The spelling of 1140430403 in words is "one billion, one hundred forty million, four hundred thirty thousand, four hundred three".