151331243 has 8 divisors (see below), whose sum is σ = 178529280. Its totient is φ = 125528040.

The previous prime is 151331209. The next prime is 151331249. The reversal of 151331243 is 342133151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151331243 - 2⁸ = 151330987 is a prime.

It is a super-2 number, since 2×151331243² = 45802290215850098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151331249) 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 7 ways as a sum of consecutive naturals, for example, 348473 + ... + 348906.

It is an arithmetic number, because the mean of its divisors is an integer number (22316160).

Almost surely, 2^151331243 is an apocalyptic number.

151331243 is a deficient number, since it is larger than the sum of its proper divisors (27198037).

151331243 is an equidigital number, since it uses as much as digits as its factorization.

151331243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697417.

The product of its digits is 1080, while the sum is 23.

The square root of 151331243 is about 12301.6764304708. The cubic root of 151331243 is about 532.8964982472.

Adding to 151331243 its reverse (342133151), we get a palindrome (493464394).

The spelling of 151331243 in words is "one hundred fifty-one million, three hundred thirty-one thousand, two hundred forty-three".