146688697 has 4 divisors (see below), whose sum is σ = 146718720. Its totient is φ = 146658676.

The previous prime is 146688679. The next prime is 146688719. The reversal of 146688697 is 796886641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 796886641 = 53 ⋅15035597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146688697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146688637) 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, 5797 + ... + 18082.

It is an arithmetic number, because the mean of its divisors is an integer number (36679680).

Almost surely, 2^146688697 is an apocalyptic number.

It is an amenable number.

146688697 is a deficient number, since it is larger than the sum of its proper divisors (30023).

146688697 is an equidigital number, since it uses as much as digits as its factorization.

146688697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022.

The product of its digits is 3483648, while the sum is 55.

The square root of 146688697 is about 12111.5109296900. The cubic root of 146688697 is about 527.3903961315.

The spelling of 146688697 in words is "one hundred forty-six million, six hundred eighty-eight thousand, six hundred ninety-seven".