1121651677 has 2 divisors, whose sum is σ = 1121651678. Its totient is φ = 1121651676.

The previous prime is 1121651593. The next prime is 1121651711. The reversal of 1121651677 is 7761561211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 971319556 + 150332121 = 31166^2 + 12261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121651677 - 2²³ = 1113263069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121651777) 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, 560825838 + 560825839.

It is an arithmetic number, because the mean of its divisors is an integer number (560825839).

Almost surely, 2^1121651677 is an apocalyptic number.

It is an amenable number.

1121651677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121651677 is an equidigital number, since it uses as much as digits as its factorization.

1121651677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 37.

The square root of 1121651677 is about 33491.0686153786. The cubic root of 1121651677 is about 1039.0090650526.

The spelling of 1121651677 in words is "one billion, one hundred twenty-one million, six hundred fifty-one thousand, six hundred seventy-seven".