152821462 has 4 divisors (see below), whose sum is σ = 229232196. Its totient is φ = 76410730.

The previous prime is 152821423. The next prime is 152821469. The reversal of 152821462 is 264128251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 264128251 = 23 ⋅11483837.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152821469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38205364 + ... + 38205367.

It is an arithmetic number, because the mean of its divisors is an integer number (57308049).

Almost surely, 2^152821462 is an apocalyptic number.

152821462 is a deficient number, since it is larger than the sum of its proper divisors (76410734).

152821462 is an equidigital number, since it uses as much as digits as its factorization.

152821462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76410733.

The product of its digits is 7680, while the sum is 31.

The square root of 152821462 is about 12362.0977993219. The cubic root of 152821462 is about 534.6400023774.

The spelling of 152821462 in words is "one hundred fifty-two million, eight hundred twenty-one thousand, four hundred sixty-two".