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1131706889 is a prime number
BaseRepresentation
bin100001101110100…
…0111101000001001
32220212111122222222
41003131013220021
54304204110024
6304144223425
740021230665
oct10335075011
92825448888
101131706889
11530901155
1227700ab75
13150602861
14aa4338a5
156954a85e
hex43747a09

1131706889 has 2 divisors, whose sum is σ = 1131706890. Its totient is φ = 1131706888.

The previous prime is 1131706883. The next prime is 1131706903. The reversal of 1131706889 is 9886071311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071907600 + 59799289 = 32740^2 + 7733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131706889 - 216 = 1131641353 is a prime.

It is a super-2 number, since 2×11317068892 = 2561520965220116642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131706883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565853444 + 565853445.

It is an arithmetic number, because the mean of its divisors is an integer number (565853445).

Almost surely, 21131706889 is an apocalyptic number.

It is an amenable number.

1131706889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131706889 is an equidigital number, since it uses as much as digits as its factorization.

1131706889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1131706889 is about 33640.8514904127. The cubic root of 1131706889 is about 1042.1046165913.

The spelling of 1131706889 in words is "one billion, one hundred thirty-one million, seven hundred six thousand, eight hundred eighty-nine".