146670397 has 2 divisors, whose sum is σ = 146670398. Its totient is φ = 146670396.

The previous prime is 146670389. The next prime is 146670427. The reversal of 146670397 is 793076641.

146670397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146434201 + 236196 = 12101^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 146670397 - 2³ = 146670389 is a prime.

It is a super-2 number, since 2×146670397² = 43024410712275218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146670317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73335198 + 73335199.

It is an arithmetic number, because the mean of its divisors is an integer number (73335199).

Almost surely, 2^146670397 is an apocalyptic number.

It is an amenable number.

146670397 is a deficient number, since it is larger than the sum of its proper divisors (1).

146670397 is an equidigital number, since it uses as much as digits as its factorization.

146670397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 146670397 is about 12110.7554264794. The cubic root of 146670397 is about 527.3684638677.

The spelling of 146670397 in words is "one hundred forty-six million, six hundred seventy thousand, three hundred ninety-seven".