152421806 has 8 divisors (see below), whose sum is σ = 231853104. Its totient is φ = 75137440.

The previous prime is 152421803. The next prime is 152421853. The reversal of 152421806 is 608124251.

152421806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152421803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536555 + ... + 536838.

It is an arithmetic number, because the mean of its divisors is an integer number (28981638).

Almost surely, 2^152421806 is an apocalyptic number.

152421806 is a deficient number, since it is larger than the sum of its proper divisors (79431298).

152421806 is a wasteful number, since it uses less digits than its factorization.

152421806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073466.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 152421806 is about 12345.9226467689. The cubic root of 152421806 is about 534.1735351310.

The spelling of 152421806 in words is "one hundred fifty-two million, four hundred twenty-one thousand, eight hundred six".