118629491 has 2 divisors, whose sum is σ = 118629492. Its totient is φ = 118629490.

The previous prime is 118629487. The next prime is 118629503. The reversal of 118629491 is 194926811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118629491 - 2² = 118629487 is a prime.

It is a super-3 number, since 3×118629491³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (118629421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59314745 + 59314746.

It is an arithmetic number, because the mean of its divisors is an integer number (59314746).

Almost surely, 2^118629491 is an apocalyptic number.

118629491 is a deficient number, since it is larger than the sum of its proper divisors (1).

118629491 is an equidigital number, since it uses as much as digits as its factorization.

118629491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 41.

The square root of 118629491 is about 10891.7166231958. The cubic root of 118629491 is about 491.3574617880.

The spelling of 118629491 in words is "one hundred eighteen million, six hundred twenty-nine thousand, four hundred ninety-one".