1154080399 has 2 divisors, whose sum is σ = 1154080400. Its totient is φ = 1154080398.

The previous prime is 1154080391. The next prime is 1154080409. The reversal of 1154080399 is 9930804511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154080399 - 2³ = 1154080391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154080391) 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, 577040199 + 577040200.

It is an arithmetic number, because the mean of its divisors is an integer number (577040200).

Almost surely, 2^1154080399 is an apocalyptic number.

1154080399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154080399 is an equidigital number, since it uses as much as digits as its factorization.

1154080399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1154080399 is about 33971.7588446639. The cubic root of 1154080399 is about 1048.9272184504.

The spelling of 1154080399 in words is "one billion, one hundred fifty-four million, eighty thousand, three hundred ninety-nine".