1031745540 has 96 divisors (see below), whose sum is σ = 3315078144. Its totient is φ = 234864000.

The previous prime is 1031745511. The next prime is 1031745571. The reversal of 1031745540 is 455471301.

1031745540 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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 1031745498 and 1031745507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100527 + ... + 110313.

It is an arithmetic number, because the mean of its divisors is an integer number (34532064).

Almost surely, 2^1031745540 is an apocalyptic number.

1031745540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031745540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657539072).

1031745540 is an abundant number, since it is smaller than the sum of its proper divisors (2283332604).

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

1031745540 is a wasteful number, since it uses less digits than its factorization.

1031745540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10057 (or 10055 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1031745540 is about 32120.7960673455. The cubic root of 1031745540 is about 1010.4718051879.

The spelling of 1031745540 in words is "one billion, thirty-one million, seven hundred forty-five thousand, five hundred forty".