1040401237 has 2 divisors, whose sum is σ = 1040401238. Its totient is φ = 1040401236.

The previous prime is 1040401223. The next prime is 1040401247. The reversal of 1040401237 is 7321040401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011176401 + 29224836 = 31799^2 + 5406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040401237 is a prime.

It is a super-2 number, since 2×1040401237² = 2164869467902260338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040401217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520200618 + 520200619.

It is an arithmetic number, because the mean of its divisors is an integer number (520200619).

Almost surely, 2^1040401237 is an apocalyptic number.

It is an amenable number.

1040401237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040401237 is an equidigital number, since it uses as much as digits as its factorization.

1040401237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1040401237 is about 32255.2513088954. The cubic root of 1040401237 is about 1013.2896809907.

Adding to 1040401237 its reverse (7321040401), we get a palindrome (8361441638).

The spelling of 1040401237 in words is "one billion, forty million, four hundred one thousand, two hundred thirty-seven".