1118829457 has 4 divisors (see below), whose sum is σ = 1167474240. Its totient is φ = 1070184676.

The previous prime is 1118829433. The next prime is 1118829469. The reversal of 1118829457 is 7549288111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7549288111 = 79 ⋅95560609.

It is a cyclic number.

It is not a de Polignac number, because 1118829457 - 2⁷ = 1118829329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118829757) 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, 24322357 + ... + 24322402.

It is an arithmetic number, because the mean of its divisors is an integer number (291868560).

Almost surely, 2^1118829457 is an apocalyptic number.

It is an amenable number.

1118829457 is a deficient number, since it is larger than the sum of its proper divisors (48644783).

1118829457 is an equidigital number, since it uses as much as digits as its factorization.

1118829457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48644782.

The product of its digits is 161280, while the sum is 46.

The square root of 1118829457 is about 33448.9081585633. The cubic root of 1118829457 is about 1038.1369063050.

The spelling of 1118829457 in words is "one billion, one hundred eighteen million, eight hundred twenty-nine thousand, four hundred fifty-seven".