151543331 has 4 divisors (see below), whose sum is σ = 151618032. Its totient is φ = 151468632.

The previous prime is 151543313. The next prime is 151543333. The reversal of 151543331 is 133345151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133345151 = 37 ⋅3603923.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151543331 is a prime.

It is a super-2 number, since 2×151543331² = 45930762341151122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151543331.

It is not an unprimeable number, because it can be changed into a prime (151543333) 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 3 ways as a sum of consecutive naturals, for example, 34220 + ... + 38393.

It is an arithmetic number, because the mean of its divisors is an integer number (37904508).

Almost surely, 2^151543331 is an apocalyptic number.

151543331 is a deficient number, since it is larger than the sum of its proper divisors (74701).

151543331 is an equidigital number, since it uses as much as digits as its factorization.

151543331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74700.

The product of its digits is 2700, while the sum is 26.

The square root of 151543331 is about 12310.2937008018. The cubic root of 151543331 is about 533.1453303068.

Adding to 151543331 its reverse (133345151), we get a palindrome (284888482).

The spelling of 151543331 in words is "one hundred fifty-one million, five hundred forty-three thousand, three hundred thirty-one".