1145505104 has 40 divisors (see below), whose sum is σ = 2309852160. Its totient is φ = 549653888.

The previous prime is 1145505083. The next prime is 1145505113. The reversal of 1145505104 is 4015055411.

It is a super-3 number, since 3×1145505104³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70097 + ... + 84879.

It is an arithmetic number, because the mean of its divisors is an integer number (57746304).

Almost surely, 2^1145505104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145505104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154926080).

1145505104 is an abundant number, since it is smaller than the sum of its proper divisors (1164347056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145505104 is a wasteful number, since it uses less digits than its factorization.

1145505104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987 (or 14981 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1145505104 is about 33845.3114035017. The cubic root of 1145505104 is about 1046.3227692644.

The spelling of 1145505104 in words is "one billion, one hundred forty-five million, five hundred five thousand, one hundred four".