152489421 has 36 divisors (see below), whose sum is σ = 269724000. Its totient is φ = 82546128.

The previous prime is 152489419. The next prime is 152489429. The reversal of 152489421 is 124984251.

152489421 is a `hidden beast` number, since 152 + 4 + 89 + 421 = 666.

It is not a de Polignac number, because 152489421 - 2¹ = 152489419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152489429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 721 + ... + 17478.

Almost surely, 2^152489421 is an apocalyptic number.

It is an amenable number.

152489421 is a deficient number, since it is larger than the sum of its proper divisors (117234579).

152489421 is a wasteful number, since it uses less digits than its factorization.

152489421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18238 (or 18228 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 152489421 is about 12348.6606966100. The cubic root of 152489421 is about 534.2525107166.

The spelling of 152489421 in words is "one hundred fifty-two million, four hundred eighty-nine thousand, four hundred twenty-one".