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118830521 is a prime number
BaseRepresentation
bin1110001010100…
…11010110111001
322021121012211102
413011103112321
5220410034041
615442541145
72642020445
oct705232671
9267535742
10118830521
1161093147
12339677b5
131b807824
1411ad3825
15a67409b
hex71535b9

118830521 has 2 divisors, whose sum is σ = 118830522. Its totient is φ = 118830520.

The previous prime is 118830479. The next prime is 118830539. The reversal of 118830521 is 125038811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105288121 + 13542400 = 10261^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 118830521 - 218 = 118568377 is a prime.

It is a super-2 number, since 2×1188305212 = 28241385442262882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118830821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59415260 + 59415261.

It is an arithmetic number, because the mean of its divisors is an integer number (59415261).

Almost surely, 2118830521 is an apocalyptic number.

It is an amenable number.

118830521 is a deficient number, since it is larger than the sum of its proper divisors (1).

118830521 is an equidigital number, since it uses as much as digits as its factorization.

118830521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 118830521 is about 10900.9412896318. The cubic root of 118830521 is about 491.6348572481.

The spelling of 118830521 in words is "one hundred eighteen million, eight hundred thirty thousand, five hundred twenty-one".