146225898 has 180 divisors, whose sum is σ = 416509830. Its totient is φ = 38211264.

The previous prime is 146225897. The next prime is 146225899. The reversal of 146225898 is 898522641.

146225898 is a `hidden beast` number, since 1 + 4 + 62 + 2 + 589 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (146225897) and next prime (146225899).

It can be written as a sum of positive squares in 3 ways, for example, as 88115769 + 58110129 = 9387^2 + 7623^2 .

It is not an unprimeable number, because it can be changed into a prime (146225897) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 1341468 + ... + 1341576.

Almost surely, 2^146225898 is an apocalyptic number.

146225898 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 146225898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208254915).

146225898 is an abundant number, since it is smaller than the sum of its proper divisors (270283932).

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

146225898 is a wasteful number, since it uses less digits than its factorization.

146225898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 134 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 146225898 is about 12092.3900863312. The cubic root of 146225898 is about 526.8351775224.

The spelling of 146225898 in words is "one hundred forty-six million, two hundred twenty-five thousand, eight hundred ninety-eight".