151644225 has 24 divisors (see below), whose sum is σ = 263916640. Its totient is φ = 76619520.

The previous prime is 151644217. The next prime is 151644239. The reversal of 151644225 is 522446151.

It is not a de Polignac number, because 151644225 - 2³ = 151644217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151644192 and 151644201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51784 + ... + 54633.

Almost surely, 2^151644225 is an apocalyptic number.

151644225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151644225 is a deficient number, since it is larger than the sum of its proper divisors (112272415).

151644225 is a wasteful number, since it uses less digits than its factorization.

151644225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106449 (or 106444 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 151644225 is about 12314.3909715422. The cubic root of 151644225 is about 533.2636226161.

The spelling of 151644225 in words is "one hundred fifty-one million, six hundred forty-four thousand, two hundred twenty-five".