1154122049 has 2 divisors, whose sum is σ = 1154122050. Its totient is φ = 1154122048.

The previous prime is 1154122031. The next prime is 1154122087. The reversal of 1154122049 is 9402214511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1153825024 + 297025 = 33968^2 + 545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154122049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1154122549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577061024 + 577061025.

It is an arithmetic number, because the mean of its divisors is an integer number (577061025).

Almost surely, 2^1154122049 is an apocalyptic number.

It is an amenable number.

1154122049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154122049 is an equidigital number, since it uses as much as digits as its factorization.

1154122049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1154122049 is about 33972.3718483123. The cubic root of 1154122049 is about 1048.9398366623.

The spelling of 1154122049 in words is "one billion, one hundred fifty-four million, one hundred twenty-two thousand, forty-nine".