146169018 has 96 divisors (see below), whose sum is σ = 342839952. Its totient is φ = 44928000.

The previous prime is 146169011. The next prime is 146169029. The reversal of 146169018 is 810961641.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 120494529 + 25674489 = 10977^2 + 5067^2 .

It is not an unprimeable number, because it can be changed into a prime (146169011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1447168 + ... + 1447268.

Almost surely, 2^146169018 is an apocalyptic number.

146169018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 146169018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171419976).

146169018 is an abundant number, since it is smaller than the sum of its proper divisors (196670934).

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

146169018 is a wasteful number, since it uses less digits than its factorization.

146169018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 146169018 is about 12090.0379652009. The cubic root of 146169018 is about 526.7668579528.

The spelling of 146169018 in words is "one hundred forty-six million, one hundred sixty-nine thousand, eighteen".