147325621 has 8 divisors (see below), whose sum is σ = 156118104. Its totient is φ = 138547200.

The previous prime is 147325583. The next prime is 147325631. The reversal of 147325621 is 126523741.

It can be written as a sum of positive squares in 4 ways, for example, as 69639025 + 77686596 = 8345^2 + 8814^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147325621 - 2⁹ = 147325109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147325631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24511 + ... + 29923.

It is an arithmetic number, because the mean of its divisors is an integer number (19514763).

Almost surely, 2^147325621 is an apocalyptic number.

It is an amenable number.

147325621 is a deficient number, since it is larger than the sum of its proper divisors (8792483).

147325621 is a wasteful number, since it uses less digits than its factorization.

147325621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031.

The product of its digits is 10080, while the sum is 31.

The square root of 147325621 is about 12137.7766085886. The cubic root of 147325621 is about 528.1526057299.

The spelling of 147325621 in words is "one hundred forty-seven million, three hundred twenty-five thousand, six hundred twenty-one".