1101553140 has 48 divisors (see below), whose sum is σ = 3087217728. Its totient is φ = 293474304.

The previous prime is 1101553073. The next prime is 1101553153. The reversal of 1101553140 is 413551011.

It is a happy number.

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, 61219 + ... + 77141.

It is an arithmetic number, because the mean of its divisors is an integer number (64317036).

Almost surely, 2^1101553140 is an apocalyptic number.

1101553140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101553140 is an abundant number, since it is smaller than the sum of its proper divisors (1985664588).

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

1101553140 is a wasteful number, since it uses less digits than its factorization.

1101553140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17088 (or 17086 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1101553140 is about 33189.6541108822. The cubic root of 1101553140 is about 1032.7657280475.

The spelling of 1101553140 in words is "one billion, one hundred one million, five hundred fifty-three thousand, one hundred forty".