147342621 has 32 divisors (see below), whose sum is σ = 215837568. Its totient is φ = 89026560.

The previous prime is 147342617. The next prime is 147342661. The reversal of 147342621 is 126243741.

It is not a de Polignac number, because 147342621 - 2² = 147342617 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147342661) 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 31 ways as a sum of consecutive naturals, for example, 212886 + ... + 213576.

It is an arithmetic number, because the mean of its divisors is an integer number (6744924).

Almost surely, 2^147342621 is an apocalyptic number.

It is an amenable number.

147342621 is a deficient number, since it is larger than the sum of its proper divisors (68494947).

147342621 is a wasteful number, since it uses less digits than its factorization.

147342621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its digits is 8064, while the sum is 30.

The square root of 147342621 is about 12138.4768813884. The cubic root of 147342621 is about 528.1729195738.

The spelling of 147342621 in words is "one hundred forty-seven million, three hundred forty-two thousand, six hundred twenty-one".