151131447 has 8 divisors (see below), whose sum is σ = 223898480. Its totient is φ = 100754280.

The previous prime is 151131437. The next prime is 151131469. The reversal of 151131447 is 744131151.

151131447 is a `hidden beast` number, since 1 + 511 + 3 + 144 + 7 = 666.

It is not a de Polignac number, because 151131447 - 2⁷ = 151131319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5597461 = 151131447 / (1 + 5 + 1 + 1 + 3 + 1 + 4 + 4 + 7).

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 151131447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151131437) 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, 2798704 + ... + 2798757.

It is an arithmetic number, because the mean of its divisors is an integer number (27987310).

Almost surely, 2^151131447 is an apocalyptic number.

151131447 is a deficient number, since it is larger than the sum of its proper divisors (72767033).

151131447 is an equidigital number, since it uses as much as digits as its factorization.

151131447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5597470 (or 5597464 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 151131447 is about 12293.5530665467. The cubic root of 151131447 is about 532.6618750079.

Adding to 151131447 its reverse (744131151), we get a palindrome (895262598).

The spelling of 151131447 in words is "one hundred fifty-one million, one hundred thirty-one thousand, four hundred forty-seven".