1115400037 has 2 divisors, whose sum is σ = 1115400038. Its totient is φ = 1115400036.

The previous prime is 1115400023. The next prime is 1115400053. The reversal of 1115400037 is 7300045111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638370756 + 477029281 = 25266^2 + 21841^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115400037 - 2¹⁵ = 1115367269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1115399990 and 1115400017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115400337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557700018 + 557700019.

It is an arithmetic number, because the mean of its divisors is an integer number (557700019).

Almost surely, 2^1115400037 is an apocalyptic number.

It is an amenable number.

1115400037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115400037 is an equidigital number, since it uses as much as digits as its factorization.

1115400037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1115400037 is about 33397.6052584613. The cubic root of 1115400037 is about 1037.0751265972.

Adding to 1115400037 its reverse (7300045111), we get a palindrome (8415445148).

The spelling of 1115400037 in words is "one billion, one hundred fifteen million, four hundred thousand, thirty-seven".