1083278557 has 8 divisors (see below), whose sum is σ = 1121012640. Its totient is φ = 1045569840.

The previous prime is 1083278543. The next prime is 1083278561. The reversal of 1083278557 is 7558723801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1083278557 - 2¹⁹ = 1082754269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083278057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132058 + ... + 140020.

It is an arithmetic number, because the mean of its divisors is an integer number (140126580).

Almost surely, 2^1083278557 is an apocalyptic number.

It is an amenable number.

1083278557 is a deficient number, since it is larger than the sum of its proper divisors (37734083).

1083278557 is an equidigital number, since it uses as much as digits as its factorization.

1083278557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 1083278557 is about 32913.1973074632. The cubic root of 1083278557 is about 1027.0227143372.

The spelling of 1083278557 in words is "one billion, eighty-three million, two hundred seventy-eight thousand, five hundred fifty-seven".