151320432 has 20 divisors (see below), whose sum is σ = 390911240. Its totient is φ = 50440128.

The previous prime is 151320431. The next prime is 151320457. The reversal of 151320432 is 234023151.

It is a junction number, because it is equal to n+sod(n) for n = 151320399 and 151320408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151320431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576207 + ... + 1576302.

It is an arithmetic number, because the mean of its divisors is an integer number (19545562).

Almost surely, 2^151320432 is an apocalyptic number.

151320432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151320432 is an abundant number, since it is smaller than the sum of its proper divisors (239590808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151320432 is a wasteful number, since it uses less digits than its factorization.

151320432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152520 (or 3152514 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 151320432 is about 12301.2370109676. The cubic root of 151320432 is about 532.8838080251.

Adding to 151320432 its reverse (234023151), we get a palindrome (385343583).

It can be divided in two parts, 1513 and 20432, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 151320432 in words is "one hundred fifty-one million, three hundred twenty thousand, four hundred thirty-two".