146667931213 has 4 divisors (see below), whose sum is σ = 146707224508. Its totient is φ = 146628637920.

The previous prime is 146667931183. The next prime is 146667931231. The reversal of 146667931213 is 312139766641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97535662249 + 49132268964 = 312307^2 + 221658^2 .

It is a cyclic number.

It is not a de Polignac number, because 146667931213 - 2¹³ = 146667923021 is a prime.

It is a super-2 number, since 2×146667931213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146667931243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19641048 + ... + 19648513.

It is an arithmetic number, because the mean of its divisors is an integer number (36676806127).

Almost surely, 2^146667931213 is an apocalyptic number.

It is an amenable number.

146667931213 is a deficient number, since it is larger than the sum of its proper divisors (39293295).

146667931213 is an equidigital number, since it uses as much as digits as its factorization.

146667931213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39293294.

The product of its digits is 979776, while the sum is 49.

The spelling of 146667931213 in words is "one hundred forty-six billion, six hundred sixty-seven million, nine hundred thirty-one thousand, two hundred thirteen".