152421210 has 32 divisors (see below), whose sum is σ = 406457280. Its totient is φ = 40645584.

The previous prime is 152421121. The next prime is 152421223. The reversal of 152421210 is 12124251.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 281992 + ... + 282531.

It is an arithmetic number, because the mean of its divisors is an integer number (12701790).

Almost surely, 2^152421210 is an apocalyptic number.

152421210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152421210 is an abundant number, since it is smaller than the sum of its proper divisors (254036070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152421210 is a wasteful number, since it uses less digits than its factorization.

152421210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564539 (or 564533 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 152421210 is about 12345.8985092216. The cubic root of 152421210 is about 534.1728388880.

Adding to 152421210 its reverse (12124251), we get a palindrome (164545461).

The spelling of 152421210 in words is "one hundred fifty-two million, four hundred twenty-one thousand, two hundred ten".