1254532166 has 8 divisors (see below), whose sum is σ = 1905618720. Its totient is φ = 619325928.

The previous prime is 1254532151. The next prime is 1254532189. The reversal of 1254532166 is 6612354521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1254532166³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3969881 + ... + 3970196.

It is an arithmetic number, because the mean of its divisors is an integer number (238202340).

Almost surely, 2^1254532166 is an apocalyptic number.

1254532166 is a deficient number, since it is larger than the sum of its proper divisors (651086554).

1254532166 is an equidigital number, since it uses as much as digits as its factorization.

1254532166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7940158.

The product of its digits is 43200, while the sum is 35.

The square root of 1254532166 is about 35419.3755732650. The cubic root of 1254532166 is about 1078.5176754831.

Adding to 1254532166 its reverse (6612354521), we get a palindrome (7866886687).

The spelling of 1254532166 in words is "one billion, two hundred fifty-four million, five hundred thirty-two thousand, one hundred sixty-six".