1154020051 has 2 divisors, whose sum is σ = 1154020052. Its totient is φ = 1154020050.

The previous prime is 1154020031. The next prime is 1154020069. The reversal of 1154020051 is 1500204511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154020051 - 2⁹ = 1154019539 is a prime.

It is a super-2 number, since 2×1154020051² = 2663524556220085202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1154020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577010025 + 577010026.

It is an arithmetic number, because the mean of its divisors is an integer number (577010026).

Almost surely, 2^1154020051 is an apocalyptic number.

1154020051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154020051 is an equidigital number, since it uses as much as digits as its factorization.

1154020051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1154020051 is about 33970.8706246984. The cubic root of 1154020051 is about 1048.9089349862.

Adding to 1154020051 its reverse (1500204511), we get a palindrome (2654224562).

The spelling of 1154020051 in words is "one billion, one hundred fifty-four million, twenty thousand, fifty-one".