118151849 has 2 divisors, whose sum is σ = 118151850. Its totient is φ = 118151848.

The previous prime is 118151837. The next prime is 118151879. The reversal of 118151849 is 948151811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86025625 + 32126224 = 9275^2 + 5668^2 .

It is a cyclic number.

It is not a de Polignac number, because 118151849 - 2¹⁶ = 118086313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118151809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59075924 + 59075925.

It is an arithmetic number, because the mean of its divisors is an integer number (59075925).

Almost surely, 2^118151849 is an apocalyptic number.

It is an amenable number.

118151849 is a deficient number, since it is larger than the sum of its proper divisors (1).

118151849 is an equidigital number, since it uses as much as digits as its factorization.

118151849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 38.

The square root of 118151849 is about 10869.7676608104. The cubic root of 118151849 is about 490.6971182558.

Subtracting from 118151849 its sum of digits (38), we obtain a palindrome (118151811).

The spelling of 118151849 in words is "one hundred eighteen million, one hundred fifty-one thousand, eight hundred forty-nine".