147747136 has 56 divisors (see below), whose sum is σ = 312313320. Its totient is φ = 69107712.

The previous prime is 147747133. The next prime is 147747163. The reversal of 147747136 is 631747741.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84640000 + 63107136 = 9200^2 + 7944^2 .

It is a hoax number, since the sum of its digits (40) 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 (147747133) 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 7 ways as a sum of consecutive naturals, for example, 248856 + ... + 249448.

Almost surely, 2^147747136 is an apocalyptic number.

147747136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147747136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156156660).

147747136 is an abundant number, since it is smaller than the sum of its proper divisors (164566184).

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

147747136 is a wasteful number, since it uses less digits than its factorization.

147747136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 841 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The square root of 147747136 is about 12155.1279713543. The cubic root of 147747136 is about 528.6558272410.

The spelling of 147747136 in words is "one hundred forty-seven million, seven hundred forty-seven thousand, one hundred thirty-six".