118690157 has 2 divisors, whose sum is σ = 118690158. Its totient is φ = 118690156.

The previous prime is 118690151. The next prime is 118690177. The reversal of 118690157 is 751096811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91795561 + 26894596 = 9581^2 + 5186^2 .

It is an emirp because it is prime and its reverse (751096811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118690157 - 2¹⁰ = 118689133 is a prime.

It is equal to p_6771377 and since 118690157 and 6771377 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118690157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118690151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59345078 + 59345079.

It is an arithmetic number, because the mean of its divisors is an integer number (59345079).

Almost surely, 2^118690157 is an apocalyptic number.

It is an amenable number.

118690157 is a deficient number, since it is larger than the sum of its proper divisors (1).

118690157 is an equidigital number, since it uses as much as digits as its factorization.

118690157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 118690157 is about 10894.5012276836. The cubic root of 118690157 is about 491.4412060343.

The spelling of 118690157 in words is "one hundred eighteen million, six hundred ninety thousand, one hundred fifty-seven".