1134921787 has 2 divisors, whose sum is σ = 1134921788. Its totient is φ = 1134921786.

The previous prime is 1134921761. The next prime is 1134921791. The reversal of 1134921787 is 7871294311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1134921787 - 2⁷ = 1134921659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1134921727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567460893 + 567460894.

It is an arithmetic number, because the mean of its divisors is an integer number (567460894).

Almost surely, 2^1134921787 is an apocalyptic number.

1134921787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134921787 is an equidigital number, since it uses as much as digits as its factorization.

1134921787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 43.

The square root of 1134921787 is about 33688.6002529045. The cubic root of 1134921787 is about 1043.0904703958.

The spelling of 1134921787 in words is "one billion, one hundred thirty-four million, nine hundred twenty-one thousand, seven hundred eighty-seven".