151232405 has 4 divisors (see below), whose sum is σ = 181478892. Its totient is φ = 120985920.

The previous prime is 151232387. The next prime is 151232407. The reversal of 151232405 is 504232151.

151232405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111365809 + 39866596 = 10553^2 + 6314^2 .

It is a de Polignac number, because none of the positive numbers 2^k-151232405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151232407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15123236 + ... + 15123245.

It is an arithmetic number, because the mean of its divisors is an integer number (45369723).

Almost surely, 2^151232405 is an apocalyptic number.

It is an amenable number.

151232405 is a deficient number, since it is larger than the sum of its proper divisors (30246487).

151232405 is an equidigital number, since it uses as much as digits as its factorization.

151232405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30246486.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 151232405 is about 12297.6585169698. The cubic root of 151232405 is about 532.7804572280.

Adding to 151232405 its reverse (504232151), we get a palindrome (655464556).

The spelling of 151232405 in words is "one hundred fifty-one million, two hundred thirty-two thousand, four hundred five".