1040815051 has 6 divisors (see below), whose sum is σ = 1056586020. Its totient is φ = 1025276076.

The previous prime is 1040815037. The next prime is 1040815063. The reversal of 1040815051 is 1505180401.

It is a happy number.

It is not a de Polignac number, because 1040815051 - 2¹⁵ = 1040782283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040819051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111441 + ... + 120418.

It is an arithmetic number, because the mean of its divisors is an integer number (176097670).

Almost surely, 2^1040815051 is an apocalyptic number.

1040815051 is a deficient number, since it is larger than the sum of its proper divisors (15770969).

1040815051 is an frugal number, since it uses more digits than its factorization.

1040815051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231993 (or 231926 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 1040815051 is about 32261.6653475917. The cubic root of 1040815051 is about 1013.4240066913.

Adding to 1040815051 its reverse (1505180401), we get a palindrome (2545995452).

The spelling of 1040815051 in words is "one billion, forty million, eight hundred fifteen thousand, fifty-one".