1103378557 has 8 divisors (see below), whose sum is σ = 1168806456. Its totient is φ = 1038008832.

The previous prime is 1103378513. The next prime is 1103378561. The reversal of 1103378557 is 7558733011.

It can be written as a sum of positive squares in 4 ways, for example, as 923308996 + 180069561 = 30386^2 + 13419^2 .

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 1103378557 - 2¹¹ = 1103376509 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 (1103378597) 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, 28113 + ... + 54745.

It is an arithmetic number, because the mean of its divisors is an integer number (146100807).

Almost surely, 2^1103378557 is an apocalyptic number.

1103378557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1103378557 is a deficient number, since it is larger than the sum of its proper divisors (65427899).

1103378557 is a wasteful number, since it uses less digits than its factorization.

1103378557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29087.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 1103378557 is about 33217.1425170799. The cubic root of 1103378557 is about 1033.3358889866.

The spelling of 1103378557 in words is "one billion, one hundred three million, three hundred seventy-eight thousand, five hundred fifty-seven".