152121501 has 48 divisors (see below), whose sum is σ = 264850560. Its totient is φ = 82293120.

The previous prime is 152121493. The next prime is 152121503. The reversal of 152121501 is 105121251.

152121501 is a `hidden beast` number, since 152 + 12 + 1 + 501 = 666.

It is not a de Polignac number, because 152121501 - 2³ = 152121493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152121503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96046 + ... + 97616.

It is an arithmetic number, because the mean of its divisors is an integer number (5517720).

Almost surely, 2^152121501 is an apocalyptic number.

It is an amenable number.

152121501 is a deficient number, since it is larger than the sum of its proper divisors (112729059).

152121501 is a wasteful number, since it uses less digits than its factorization.

152121501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 152121501 is about 12333.7545378526. The cubic root of 152121501 is about 533.8224907622.

Adding to 152121501 its reverse (105121251), we get a palindrome (257242752).

The spelling of 152121501 in words is "one hundred fifty-two million, one hundred twenty-one thousand, five hundred one".