146117997 has 12 divisors (see below), whose sum is σ = 214520124. Its totient is φ = 95814720.

The previous prime is 146117989. The next prime is 146118001. The reversal of 146117997 is 799711641.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 102637161 = 6594^2 + 10131^2 .

It is not a de Polignac number, because 146117997 - 2³ = 146117989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146117977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132528 + ... + 133625.

It is an arithmetic number, because the mean of its divisors is an integer number (17876677).

Almost surely, 2^146117997 is an apocalyptic number.

It is an amenable number.

146117997 is a deficient number, since it is larger than the sum of its proper divisors (68402127).

146117997 is a wasteful number, since it uses less digits than its factorization.

146117997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266220 (or 266217 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 146117997 is about 12087.9277380368. The cubic root of 146117997 is about 526.7055606502.

The spelling of 146117997 in words is "one hundred forty-six million, one hundred seventeen thousand, nine hundred ninety-seven".