1103555245 has 16 divisors (see below), whose sum is σ = 1501194240. Its totient is φ = 772041024.

The previous prime is 1103555237. The next prime is 1103555251. The reversal of 1103555245 is 5425553011.

It is a cyclic number.

It is not a de Polignac number, because 1103555245 - 2³ = 1103555237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445549 + ... + 448018.

It is an arithmetic number, because the mean of its divisors is an integer number (93824640).

Almost surely, 2^1103555245 is an apocalyptic number.

It is an amenable number.

1103555245 is a deficient number, since it is larger than the sum of its proper divisors (397638995).

1103555245 is a wasteful number, since it uses less digits than its factorization.

1103555245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893604.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1103555245 is about 33219.8020012161. The cubic root of 1103555245 is about 1033.3910433141.

It can be divided in two parts, 110355 and 5245, that added together give a square (115600 = 340²).

The spelling of 1103555245 in words is "one billion, one hundred three million, five hundred fifty-five thousand, two hundred forty-five".