118921902 has 64 divisors (see below), whose sum is σ = 278256384. Its totient is φ = 33482240.

The previous prime is 118921871. The next prime is 118921909. The reversal of 118921902 is 209129811.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118921909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92488 + ... + 93764.

It is an arithmetic number, because the mean of its divisors is an integer number (4347756).

Almost surely, 2^118921902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118921902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139128192).

118921902 is an abundant number, since it is smaller than the sum of its proper divisors (159334482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118921902 is a wasteful number, since it uses less digits than its factorization.

118921902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 118921902 is about 10905.1319111692. The cubic root of 118921902 is about 491.7608478139.

The spelling of 118921902 in words is "one hundred eighteen million, nine hundred twenty-one thousand, nine hundred two".