118791229 has 2 divisors, whose sum is σ = 118791230. Its totient is φ = 118791228.

The previous prime is 118791181. The next prime is 118791263. The reversal of 118791229 is 922197811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92679129 + 26112100 = 9627^2 + 5110^2 .

It is a cyclic number.

It is not a de Polignac number, because 118791229 - 2¹³ = 118783037 is a prime.

It is a super-2 number, since 2×118791229² = 28222712174660882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118791191 and 118791200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118791269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59395614 + 59395615.

It is an arithmetic number, because the mean of its divisors is an integer number (59395615).

Almost surely, 2^118791229 is an apocalyptic number.

It is an amenable number.

118791229 is a deficient number, since it is larger than the sum of its proper divisors (1).

118791229 is an equidigital number, since it uses as much as digits as its factorization.

118791229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 118791229 is about 10899.1389109415. The cubic root of 118791229 is about 491.5806639703.

It can be divided in two parts, 1187 and 91229, that added together give a square (92416 = 304²).

The spelling of 118791229 in words is "one hundred eighteen million, seven hundred ninety-one thousand, two hundred twenty-nine".