147856242 has 64 divisors (see below), whose sum is σ = 323481600. Its totient is φ = 44878080.

The previous prime is 147856201. The next prime is 147856243. The reversal of 147856242 is 242658741.

It is a super-2 number, since 2×147856242² = 43722936596725128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147856242.

It is not an unprimeable number, because it can be changed into a prime (147856243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475267 + ... + 475577.

It is an arithmetic number, because the mean of its divisors is an integer number (5054400).

Almost surely, 2^147856242 is an apocalyptic number.

147856242 is an abundant number, since it is smaller than the sum of its proper divisors (175625358).

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

147856242 is a wasteful number, since it uses less digits than its factorization.

147856242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 107520, while the sum is 39.

The square root of 147856242 is about 12159.6152077276. The cubic root of 147856242 is about 528.7859263910.

The spelling of 147856242 in words is "one hundred forty-seven million, eight hundred fifty-six thousand, two hundred forty-two".