151423225 has 6 divisors (see below), whose sum is σ = 187764830. Its totient is φ = 121138560.

The previous prime is 151423211. The next prime is 151423229. The reversal of 151423225 is 522324151.

It can be written as a sum of positive squares in 3 ways, for example, as 50239744 + 101183481 = 7088^2 + 10059^2 .

It is not a de Polignac number, because 151423225 - 2¹⁷ = 151292153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 6056929 = 151423225 / (1 + 5 + 1 + 4 + 2 + 3 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 151423225.

It is not an unprimeable number, because it can be changed into a prime (151423229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3028440 + ... + 3028489.

Almost surely, 2^151423225 is an apocalyptic number.

It is an amenable number.

151423225 is a deficient number, since it is larger than the sum of its proper divisors (36341605).

151423225 is an equidigital number, since it uses as much as digits as its factorization.

151423225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056939 (or 6056934 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 151423225 is about 12305.4144586844. The cubic root of 151423225 is about 533.0044445795.

Adding to 151423225 its reverse (522324151), we get a palindrome (673747376).

The spelling of 151423225 in words is "one hundred fifty-one million, four hundred twenty-three thousand, two hundred twenty-five".