1040134397 has 4 divisors (see below), whose sum is σ = 1041708636. Its totient is φ = 1038560160.

The previous prime is 1040134391. The next prime is 1040134411. The reversal of 1040134397 is 7934310401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 823632601 + 216501796 = 28699^2 + 14714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040134397 - 2⁸ = 1040134141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040134391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786128 + ... + 787449.

It is an arithmetic number, because the mean of its divisors is an integer number (260427159).

Almost surely, 2^1040134397 is an apocalyptic number.

It is an amenable number.

1040134397 is a deficient number, since it is larger than the sum of its proper divisors (1574239).

1040134397 is an equidigital number, since it uses as much as digits as its factorization.

1040134397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574238.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1040134397 is about 32251.1146629074. The cubic root of 1040134397 is about 1013.2030447559.

Adding to 1040134397 its reverse (7934310401), we get a palindrome (8974444798).

The spelling of 1040134397 in words is "one billion, forty million, one hundred thirty-four thousand, three hundred ninety-seven".