146547021 has 8 divisors (see below), whose sum is σ = 206889984. Its totient is φ = 91951040.

The previous prime is 146547001. The next prime is 146547029. The reversal of 146547021 is 120745641.

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 146547021 - 2⁶ = 146546957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146547021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146547029) 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, 1436685 + ... + 1436786.

It is an arithmetic number, because the mean of its divisors is an integer number (25861248).

Almost surely, 2^146547021 is an apocalyptic number.

It is an amenable number.

146547021 is a deficient number, since it is larger than the sum of its proper divisors (60342963).

146547021 is a wasteful number, since it uses less digits than its factorization.

146547021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873491.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 146547021 is about 12105.6607006805. The cubic root of 146547021 is about 527.2205520302.

The spelling of 146547021 in words is "one hundred forty-six million, five hundred forty-seven thousand, twenty-one".