1140324155 has 4 divisors (see below), whose sum is σ = 1368388992. Its totient is φ = 912259320.

The previous prime is 1140324151. The next prime is 1140324173. The reversal of 1140324155 is 5514230411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5514230411 = 23251 ⋅237161.

It is not a de Polignac number, because 1140324155 - 2² = 1140324151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140324151) 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, 114032411 + ... + 114032420.

It is an arithmetic number, because the mean of its divisors is an integer number (342097248).

Almost surely, 2^1140324155 is an apocalyptic number.

1140324155 is a deficient number, since it is larger than the sum of its proper divisors (228064837).

1140324155 is an equidigital number, since it uses as much as digits as its factorization.

1140324155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228064836.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1140324155 is about 33768.6860123399. The cubic root of 1140324155 is about 1044.7429310508.

Adding to 1140324155 its reverse (5514230411), we get a palindrome (6654554566).

The spelling of 1140324155 in words is "one billion, one hundred forty million, three hundred twenty-four thousand, one hundred fifty-five".