1090917551 has 2 divisors, whose sum is σ = 1090917552. Its totient is φ = 1090917550.

The previous prime is 1090917539. The next prime is 1090917571. The reversal of 1090917551 is 1557190901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1090917551 - 2¹⁰ = 1090916527 is a prime.

It is a super-2 number, since 2×1090917551² = 2380202206159675202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1090917571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545458775 + 545458776.

It is an arithmetic number, because the mean of its divisors is an integer number (545458776).

Almost surely, 2^1090917551 is an apocalyptic number.

1090917551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090917551 is an equidigital number, since it uses as much as digits as its factorization.

1090917551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14175, while the sum is 38.

The square root of 1090917551 is about 33029.0410245287. The cubic root of 1090917551 is about 1029.4311594946.

The spelling of 1090917551 in words is "one billion, ninety million, nine hundred seventeen thousand, five hundred fifty-one".