152421471 has 12 divisors (see below), whose sum is σ = 220491960. Its totient is φ = 101463120.

The previous prime is 152421469. The next prime is 152421491. The reversal of 152421471 is 174124251.

152421471 is a `hidden beast` number, since 152 + 42 + 1 + 471 = 666.

152421471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 152421471 - 2¹ = 152421469 is a prime.

It is a super-3 number, since 3×152421471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152421431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6036 + ... + 18473.

It is an arithmetic number, because the mean of its divisors is an integer number (18374330).

Almost surely, 2^152421471 is an apocalyptic number.

152421471 is a deficient number, since it is larger than the sum of its proper divisors (68070489).

152421471 is a wasteful number, since it uses less digits than its factorization.

152421471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25206 (or 25203 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 152421471 is about 12345.9090795291. The cubic root of 152421471 is about 534.1731437866.

The spelling of 152421471 in words is "one hundred fifty-two million, four hundred twenty-one thousand, four hundred seventy-one".