146199897 has 10 divisors (see below), whose sum is σ = 218397498. Its totient is φ = 97466544.

The previous prime is 146199883. The next prime is 146199919. The reversal of 146199897 is 798991641.

146199897 is a `hidden beast` number, since 1 + 461 + 9 + 98 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 96412761 + 49787136 = 9819^2 + 7056^2 .

It is not a de Polignac number, because 146199897 - 2¹⁵ = 146167129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146199397) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 902388 + ... + 902549.

Almost surely, 2^146199897 is an apocalyptic number.

It is an amenable number.

146199897 is a deficient number, since it is larger than the sum of its proper divisors (72197601).

146199897 is an equidigital number, since it uses as much as digits as its factorization.

146199897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804949 (or 1804940 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 146199897 is about 12091.3149408987. The cubic root of 146199897 is about 526.8039494621.

The spelling of 146199897 in words is "one hundred forty-six million, one hundred ninety-nine thousand, eight hundred ninety-seven".