1105145140 has 48 divisors (see below), whose sum is σ = 2535099840. Its totient is φ = 401345280.

The previous prime is 1105145099. The next prime is 1105145143. The reversal of 1105145140 is 415415011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105145143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191416 + ... + 197104.

It is an arithmetic number, because the mean of its divisors is an integer number (52814580).

Almost surely, 2^1105145140 is an apocalyptic number.

1105145140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105145140 is an abundant number, since it is smaller than the sum of its proper divisors (1429954700).

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

1105145140 is a wasteful number, since it uses less digits than its factorization.

1105145140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592 (or 6590 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1105145140 is about 33243.7233173422. The cubic root of 1105145140 is about 1033.8870749278.

The spelling of 1105145140 in words is "one billion, one hundred five million, one hundred forty-five thousand, one hundred forty".