146698729 has 8 divisors (see below), whose sum is σ = 155441160. Its totient is φ = 137968896.

The previous prime is 146698723. The next prime is 146698771. The reversal of 146698729 is 927896641.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55056400 + 91642329 = 7420^2 + 9573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146698729 - 2¹⁷ = 146567657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146698723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32367 + ... + 36619.

It is an arithmetic number, because the mean of its divisors is an integer number (19430145).

Almost surely, 2^146698729 is an apocalyptic number.

It is an amenable number.

146698729 is a deficient number, since it is larger than the sum of its proper divisors (8742431).

146698729 is a wasteful number, since it uses less digits than its factorization.

146698729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299.

The product of its digits is 1306368, while the sum is 52.

The square root of 146698729 is about 12111.9250740747. The cubic root of 146698729 is about 527.4024185526.

The spelling of 146698729 in words is "one hundred forty-six million, six hundred ninety-eight thousand, seven hundred twenty-nine".