1154342047 has 2 divisors, whose sum is σ = 1154342048. Its totient is φ = 1154342046.

The previous prime is 1154342027. The next prime is 1154342083. The reversal of 1154342047 is 7402434511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154342047 - 2¹¹ = 1154339999 is a prime.

It is a super-2 number, since 2×1154342047² = 2665011122944300418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154342027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577171023 + 577171024.

It is an arithmetic number, because the mean of its divisors is an integer number (577171024).

Almost surely, 2^1154342047 is an apocalyptic number.

1154342047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154342047 is an equidigital number, since it uses as much as digits as its factorization.

1154342047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1154342047 is about 33975.6095898219. The cubic root of 1154342047 is about 1049.0064818394.

Adding to 1154342047 its reverse (7402434511), we get a palindrome (8556776558).

The spelling of 1154342047 in words is "one billion, one hundred fifty-four million, three hundred forty-two thousand, forty-seven".