1115140454 has 4 divisors (see below), whose sum is σ = 1672710684. Its totient is φ = 557570226.

The previous prime is 1115140423. The next prime is 1115140459. The reversal of 1115140454 is 4540415111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4540415111 = 79 ⋅57473609.

It is a super-2 number, since 2×1115140454² = 2487076464294652232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115140459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278785112 + ... + 278785115.

It is an arithmetic number, because the mean of its divisors is an integer number (418177671).

Almost surely, 2^1115140454 is an apocalyptic number.

1115140454 is a deficient number, since it is larger than the sum of its proper divisors (557570230).

1115140454 is an equidigital number, since it uses as much as digits as its factorization.

1115140454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557570229.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 1115140454 is about 33393.7187806330. The cubic root of 1115140454 is about 1036.9946687793.

Adding to 1115140454 its reverse (4540415111), we get a palindrome (5655555565).

The spelling of 1115140454 in words is "one billion, one hundred fifteen million, one hundred forty thousand, four hundred fifty-four".