146667667 has 4 divisors (see below), whose sum is σ = 150631696. Its totient is φ = 142703640.

The previous prime is 146667649. The next prime is 146667691. The reversal of 146667667 is 766766641.

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

It is a cyclic number.

It is not a de Polignac number, because 146667667 - 2¹⁵ = 146634899 is a prime.

It is a super-2 number, since 2×146667667² = 43022809086445778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146667667.

It is not an unprimeable number, because it can be changed into a prime (146667637) 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, 1981959 + ... + 1982032.

It is an arithmetic number, because the mean of its divisors is an integer number (37657924).

Almost surely, 2^146667667 is an apocalyptic number.

146667667 is a deficient number, since it is larger than the sum of its proper divisors (3964029).

146667667 is an equidigital number, since it uses as much as digits as its factorization.

146667667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964028.

The product of its digits is 1524096, while the sum is 49.

The square root of 146667667 is about 12110.6427162228. The cubic root of 146667667 is about 527.3651918490.

The spelling of 146667667 in words is "one hundred forty-six million, six hundred sixty-seven thousand, six hundred sixty-seven".