1131953479 has 2 divisors, whose sum is σ = 1131953480. Its totient is φ = 1131953478.

The previous prime is 1131953467. The next prime is 1131953503. The reversal of 1131953479 is 9743591311.

It is a weak prime.

It is an emirp because it is prime and its reverse (9743591311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131953479 - 2⁷ = 1131953351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131923479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565976739 + 565976740.

It is an arithmetic number, because the mean of its divisors is an integer number (565976740).

Almost surely, 2^1131953479 is an apocalyptic number.

1131953479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131953479 is an equidigital number, since it uses as much as digits as its factorization.

1131953479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 43.

The square root of 1131953479 is about 33644.5163288165. The cubic root of 1131953479 is about 1042.1802998853.

The spelling of 1131953479 in words is "one billion, one hundred thirty-one million, nine hundred fifty-three thousand, four hundred seventy-nine".