152421005 has 32 divisors (see below), whose sum is σ = 204736896. Its totient is φ = 108000000.

The previous prime is 152420987. The next prime is 152421037. The reversal of 152421005 is 500124251.

It is not a de Polignac number, because 152421005 - 2¹² = 152416909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607130 + ... + 607380.

It is an arithmetic number, because the mean of its divisors is an integer number (6398028).

Almost surely, 2^152421005 is an apocalyptic number.

It is an amenable number.

152421005 is a deficient number, since it is larger than the sum of its proper divisors (52315891).

152421005 is a wasteful number, since it uses less digits than its factorization.

152421005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 152421005 is about 12345.8902068664. The cubic root of 152421005 is about 534.1725994080.

Adding to 152421005 its reverse (500124251), we get a palindrome (652545256).

The spelling of 152421005 in words is "one hundred fifty-two million, four hundred twenty-one thousand, five".