1154020319 has 2 divisors, whose sum is σ = 1154020320. Its totient is φ = 1154020318.

The previous prime is 1154020289. The next prime is 1154020321. The reversal of 1154020319 is 9130204511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154020319 - 2¹⁶ = 1153954783 is a prime.

It is a super-2 number, since 2×1154020319² = 2663525793329723522, which contains 22 as substring.

Together with 1154020321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154020619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577010159 + 577010160.

It is an arithmetic number, because the mean of its divisors is an integer number (577010160).

Almost surely, 2^1154020319 is an apocalyptic number.

1154020319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154020319 is an equidigital number, since it uses as much as digits as its factorization.

1154020319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1154020319 is about 33970.8745692542. The cubic root of 1154020319 is about 1048.9090161828.

The spelling of 1154020319 in words is "one billion, one hundred fifty-four million, twenty thousand, three hundred nineteen".