1031140445 has 16 divisors (see below), whose sum is σ = 1285151232. Its totient is φ = 793385280.

The previous prime is 1031140441. The next prime is 1031140477. The reversal of 1031140445 is 5440411301.

It is not a de Polignac number, because 1031140445 - 2² = 1031140441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031140445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031140441) 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, 4859 + ... + 45671.

It is an arithmetic number, because the mean of its divisors is an integer number (80321952).

Almost surely, 2^1031140445 is an apocalyptic number.

It is an amenable number.

1031140445 is a deficient number, since it is larger than the sum of its proper divisors (254010787).

1031140445 is a wasteful number, since it uses less digits than its factorization.

1031140445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41012.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1031140445 is about 32111.3756323207. The cubic root of 1031140445 is about 1010.2742270764.

Adding to 1031140445 its reverse (5440411301), we get a palindrome (6471551746).

The spelling of 1031140445 in words is "one billion, thirty-one million, one hundred forty thousand, four hundred forty-five".