151220325 has 48 divisors (see below), whose sum is σ = 260189696. Its totient is φ = 77414400.

The previous prime is 151220323. The next prime is 151220327. The reversal of 151220325 is 523022151.

It is an interprime number because it is at equal distance from previous prime (151220323) and next prime (151220327).

It is not a de Polignac number, because 151220325 - 2¹ = 151220323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151220323) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 448557 + ... + 448893.

Almost surely, 2^151220325 is an apocalyptic number.

151220325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151220325 is a deficient number, since it is larger than the sum of its proper divisors (108969371).

151220325 is a wasteful number, since it uses less digits than its factorization.

151220325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 151220325 is about 12297.1673567533. The cubic root of 151220325 is about 532.7662712046.

Adding to 151220325 its reverse (523022151), we get a palindrome (674242476).

The spelling of 151220325 in words is "one hundred fifty-one million, two hundred twenty thousand, three hundred twenty-five".