147428508 has 12 divisors (see below), whose sum is σ = 343999880. Its totient is φ = 49142832.

The previous prime is 147428503. The next prime is 147428509. The reversal of 147428508 is 805824741.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×147428508² = 43470329942212128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147428503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6142843 + ... + 6142866.

Almost surely, 2^147428508 is an apocalyptic number.

It is an amenable number.

147428508 is an abundant number, since it is smaller than the sum of its proper divisors (196571372).

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

147428508 is a wasteful number, since it uses less digits than its factorization.

147428508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285716 (or 12285714 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 147428508 is about 12142.0141656976. The cubic root of 147428508 is about 528.2755248166.

The spelling of 147428508 in words is "one hundred forty-seven million, four hundred twenty-eight thousand, five hundred eight".