154170216 has 120 divisors (see below), whose sum is σ = 446631570. Its totient is φ = 49667904.

The previous prime is 154170103. The next prime is 154170217. The reversal of 154170216 is 612071451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117809316 + 36360900 = 10854^2 + 6030^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 154170216.

It is not an unprimeable number, because it can be changed into a prime (154170217) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2301015 + ... + 2301081.

Almost surely, 2^154170216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154170216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223315785).

154170216 is an abundant number, since it is smaller than the sum of its proper divisors (292461354).

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

154170216 is an equidigital number, since it uses as much as digits as its factorization.

154170216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 154170216 is about 12416.5299500303. The cubic root of 154170216 is about 536.2082524104.

The spelling of 154170216 in words is "one hundred fifty-four million, one hundred seventy thousand, two hundred sixteen".