1131401407 has 2 divisors, whose sum is σ = 1131401408. Its totient is φ = 1131401406.

The previous prime is 1131401393. The next prime is 1131401477. The reversal of 1131401407 is 7041041311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131401407 - 2²³ = 1123012799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131401477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565700703 + 565700704.

It is an arithmetic number, because the mean of its divisors is an integer number (565700704).

Almost surely, 2^1131401407 is an apocalyptic number.

1131401407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131401407 is an equidigital number, since it uses as much as digits as its factorization.

1131401407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1131401407 is about 33636.3108411134. The cubic root of 1131401407 is about 1042.0108429433.

Adding to 1131401407 its reverse (7041041311), we get a palindrome (8172442718).

The spelling of 1131401407 in words is "one billion, one hundred thirty-one million, four hundred one thousand, four hundred seven".