152421655 has 8 divisors (see below), whose sum is σ = 183666384. Its totient is φ = 121430400.

The previous prime is 152421653. The next prime is 152421671. The reversal of 152421655 is 556124251.

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

It is not a de Polignac number, because 152421655 - 2¹ = 152421653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152421653) 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 7 ways as a sum of consecutive naturals, for example, 62041 + ... + 64450.

It is an arithmetic number, because the mean of its divisors is an integer number (22958298).

Almost surely, 2^152421655 is an apocalyptic number.

152421655 is a deficient number, since it is larger than the sum of its proper divisors (31244729).

152421655 is a wasteful number, since it uses less digits than its factorization.

152421655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126737.

The product of its digits is 12000, while the sum is 31.

The square root of 152421655 is about 12345.9165313880. The cubic root of 152421655 is about 534.1733587340.

The spelling of 152421655 in words is "one hundred fifty-two million, four hundred twenty-one thousand, six hundred fifty-five".