151668425 has 12 divisors (see below), whose sum is σ = 190719936. Its totient is φ = 119624400.

The previous prime is 151668397. The next prime is 151668443. The reversal of 151668425 is 524866151.

It is a happy number.

It is not a de Polignac number, because 151668425 - 2¹⁰ = 151667401 is a prime.

It is a super-2 number, since 2×151668425² = 46006622283961250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40949 + ... + 44498.

It is an arithmetic number, because the mean of its divisors is an integer number (15893328).

Almost surely, 2^151668425 is an apocalyptic number.

It is an amenable number.

151668425 is a deficient number, since it is larger than the sum of its proper divisors (39051511).

151668425 is an equidigital number, since it uses as much as digits as its factorization.

151668425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85528 (or 85523 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 151668425 is about 12315.3735225530. The cubic root of 151668425 is about 533.2919878973.

The spelling of 151668425 in words is "one hundred fifty-one million, six hundred sixty-eight thousand, four hundred twenty-five".