151166225 has 18 divisors (see below), whose sum is σ = 218051334. Its totient is φ = 103656000.

The previous prime is 151166179. The next prime is 151166231. The reversal of 151166225 is 522661151.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 38551681 + 112614544 = 6209^2 + 10612^2 .

It is not a de Polignac number, because 151166225 - 2⁶ = 151166161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60476 + ... + 62925.

It is an arithmetic number, because the mean of its divisors is an integer number (12113963).

Almost surely, 2^151166225 is an apocalyptic number.

It is an amenable number.

151166225 is a deficient number, since it is larger than the sum of its proper divisors (66885109).

151166225 is a wasteful number, since it uses less digits than its factorization.

151166225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123425 (or 123413 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 151166225 is about 12294.9674664067. The cubic root of 151166225 is about 532.7027301581.

The spelling of 151166225 in words is "one hundred fifty-one million, one hundred sixty-six thousand, two hundred twenty-five".