1120154491 has 2 divisors, whose sum is σ = 1120154492. Its totient is φ = 1120154490.

The previous prime is 1120154473. The next prime is 1120154501. The reversal of 1120154491 is 1944510211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1120154491 - 2⁵ = 1120154459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120154461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560077245 + 560077246.

It is an arithmetic number, because the mean of its divisors is an integer number (560077246).

Almost surely, 2^1120154491 is an apocalyptic number.

1120154491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120154491 is an equidigital number, since it uses as much as digits as its factorization.

1120154491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1120154491 is about 33468.7091325614. The cubic root of 1120154491 is about 1038.5465677943.

The spelling of 1120154491 in words is "one billion, one hundred twenty million, one hundred fifty-four thousand, four hundred ninety-one".