1040320125 has 128 divisors (see below), whose sum is σ = 2098736640. Its totient is φ = 505440000.

The previous prime is 1040320123. The next prime is 1040320133. The reversal of 1040320125 is 5210230401.

It is not a de Polignac number, because 1040320125 - 2¹ = 1040320123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040320098 and 1040320107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040320123) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5747535 + ... + 5747715.

It is an arithmetic number, because the mean of its divisors is an integer number (16396380).

Almost surely, 2^1040320125 is an apocalyptic number.

1040320125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040320125 is an abundant number, since it is smaller than the sum of its proper divisors (1058416515).

1040320125 is a wasteful number, since it uses less digits than its factorization.

1040320125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1040320125 is about 32253.9939387357. The cubic root of 1040320125 is about 1013.2633475322.

Adding to 1040320125 its reverse (5210230401), we get a palindrome (6250550526).

The spelling of 1040320125 in words is "one billion, forty million, three hundred twenty thousand, one hundred twenty-five".