147921473 has 8 divisors (see below), whose sum is σ = 169534848. Its totient is φ = 126428544.

The previous prime is 147921439. The next prime is 147921497. The reversal of 147921473 is 374129741.

It is a happy number.

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 147921473 - 2⁶ = 147921409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147921413) 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, 27461 + ... + 32402.

It is an arithmetic number, because the mean of its divisors is an integer number (21191856).

Almost surely, 2^147921473 is an apocalyptic number.

It is an amenable number.

147921473 is a deficient number, since it is larger than the sum of its proper divisors (21613375).

147921473 is an equidigital number, since it uses as much as digits as its factorization.

147921473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60223.

The product of its digits is 42336, while the sum is 38.

The square root of 147921473 is about 12162.2971925537. The cubic root of 147921473 is about 528.8636779578.

The spelling of 147921473 in words is "one hundred forty-seven million, nine hundred twenty-one thousand, four hundred seventy-three".