146970321 has 16 divisors (see below), whose sum is σ = 207744768. Its totient is φ = 92102400.

The previous prime is 146970311. The next prime is 146970323. The reversal of 146970321 is 123079641.

It is not a de Polignac number, because 146970321 - 2¹⁹ = 146446033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146970323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61611 + ... + 63951.

It is an arithmetic number, because the mean of its divisors is an integer number (12984048).

Almost surely, 2^146970321 is an apocalyptic number.

It is an amenable number.

146970321 is a deficient number, since it is larger than the sum of its proper divisors (60774447).

146970321 is a wasteful number, since it uses less digits than its factorization.

146970321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 146970321 is about 12123.1316498667. The cubic root of 146970321 is about 527.7276882949.

The spelling of 146970321 in words is "one hundred forty-six million, nine hundred seventy thousand, three hundred twenty-one".