1031451140 has 24 divisors (see below), whose sum is σ = 2167482240. Its totient is φ = 412307168.

The previous prime is 1031451139. The next prime is 1031451181. The reversal of 1031451140 is 411541301.

It is a happy number.

1031451140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 15371 + ... + 47949.

It is an arithmetic number, because the mean of its divisors is an integer number (90311760).

Almost surely, 2^1031451140 is an apocalyptic number.

1031451140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031451140 is an abundant number, since it is smaller than the sum of its proper divisors (1136031100).

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

1031451140 is a wasteful number, since it uses less digits than its factorization.

1031451140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34171 (or 34169 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1031451140 is about 32116.2130395226. The cubic root of 1031451140 is about 1010.3756861394.

Adding to 1031451140 its reverse (411541301), we get a palindrome (1442992441).

The spelling of 1031451140 in words is "one billion, thirty-one million, four hundred fifty-one thousand, one hundred forty".