1031040140 has 48 divisors (see below), whose sum is σ = 2468908512. Its totient is φ = 358296576.

The previous prime is 1031040133. The next prime is 1031040151. The reversal of 1031040140 is 410401301.

It is a happy 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, 112214 + ... + 121053.

It is an arithmetic number, because the mean of its divisors is an integer number (51435594).

Almost surely, 2^1031040140 is an apocalyptic number.

1031040140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031040140 is an abundant number, since it is smaller than the sum of its proper divisors (1437868372).

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

1031040140 is a wasteful number, since it uses less digits than its factorization.

1031040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233306 (or 233304 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1031040140 is about 32109.8137646421. The cubic root of 1031040140 is about 1010.2414676067.

Adding to 1031040140 its reverse (410401301), we get a palindrome (1441441441).

The spelling of 1031040140 in words is "one billion, thirty-one million, forty thousand, one hundred forty".