151220827 has 4 divisors (see below), whose sum is σ = 151250616. Its totient is φ = 151191040.

The previous prime is 151220803. The next prime is 151220851. The reversal of 151220827 is 728022151.

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

It is an interprime number because it is at equal distance from previous prime (151220803) and next prime (151220851).

It is a cyclic number.

It is not a de Polignac number, because 151220827 - 2²³ = 142832219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151220795 and 151220804.

It is not an unprimeable number, because it can be changed into a prime (151220897) 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, 5158 + ... + 18139.

It is an arithmetic number, because the mean of its divisors is an integer number (37812654).

Almost surely, 2^151220827 is an apocalyptic number.

151220827 is a deficient number, since it is larger than the sum of its proper divisors (29789).

151220827 is an equidigital number, since it uses as much as digits as its factorization.

151220827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29788.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 151220827 is about 12297.1877679411. The cubic root of 151220827 is about 532.7668607382.

Adding to 151220827 its reverse (728022151), we get a palindrome (879242978).

The spelling of 151220827 in words is "one hundred fifty-one million, two hundred twenty thousand, eight hundred twenty-seven".