151642225 has 24 divisors (see below), whose sum is σ = 215879040. Its totient is φ = 103509120.

The previous prime is 151642207. The next prime is 151642273. The reversal of 151642225 is 522246151.

It is a de Polignac number, because none of the positive numbers 2^k-151642225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151642193 and 151642202.

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 23 ways as a sum of consecutive naturals, for example, 38916 + ... + 42634.

It is an arithmetic number, because the mean of its divisors is an integer number (8994960).

Almost surely, 2^151642225 is an apocalyptic number.

It is an amenable number.

151642225 is a deficient number, since it is larger than the sum of its proper divisors (64236815).

151642225 is a wasteful number, since it uses less digits than its factorization.

151642225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969 (or 3964 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 151642225 is about 12314.3097654720. The cubic root of 151642225 is about 533.2612782430.

Adding to 151642225 its reverse (522246151), we get a palindrome (673888376).

The spelling of 151642225 in words is "one hundred fifty-one million, six hundred forty-two thousand, two hundred twenty-five".