151340531 has 4 divisors (see below), whose sum is σ = 156559200. Its totient is φ = 146121864.

The previous prime is 151340513. The next prime is 151340533. The reversal of 151340531 is 135043151.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151340531 is a prime.

It is a super-2 number, since 2×151340531² = 45807912646723922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151340497 and 151340506.

It is not an unprimeable number, because it can be changed into a prime (151340533) 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, 2609291 + ... + 2609348.

It is an arithmetic number, because the mean of its divisors is an integer number (39139800).

Almost surely, 2^151340531 is an apocalyptic number.

151340531 is a deficient number, since it is larger than the sum of its proper divisors (5218669).

151340531 is an equidigital number, since it uses as much as digits as its factorization.

151340531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218668.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 151340531 is about 12302.0539342014. The cubic root of 151340531 is about 532.9074002511.

Adding to 151340531 its reverse (135043151), we get a palindrome (286383682).

The spelling of 151340531 in words is "one hundred fifty-one million, three hundred forty thousand, five hundred thirty-one".