146280997 has 2 divisors, whose sum is σ = 146280998. Its totient is φ = 146280996.

The previous prime is 146280983. The next prime is 146281117. The reversal of 146280997 is 799082641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145298916 + 982081 = 12054^2 + 991^2 .

It is a cyclic number.

It is not a de Polignac number, because 146280997 - 2¹¹ = 146278949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146280097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73140498 + 73140499.

It is an arithmetic number, because the mean of its divisors is an integer number (73140499).

Almost surely, 2^146280997 is an apocalyptic number.

It is an amenable number.

146280997 is a deficient number, since it is larger than the sum of its proper divisors (1).

146280997 is an equidigital number, since it uses as much as digits as its factorization.

146280997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 146280997 is about 12094.6681227721. The cubic root of 146280997 is about 526.9013410101.

The spelling of 146280997 in words is "one hundred forty-six million, two hundred eighty thousand, nine hundred ninety-seven".