146386631 has 4 divisors (see below), whose sum is σ = 146640912. Its totient is φ = 146132352.

The previous prime is 146386613. The next prime is 146386649. The reversal of 146386631 is 136683641.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (146386613) and next prime (146386649).

It is a cyclic number.

It is not a de Polignac number, because 146386631 - 2⁶ = 146386567 is a prime.

It is a super-2 number, since 2×146386631² = 42858091471060322, which 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 (146386601) 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, 126275 + ... + 127428.

It is an arithmetic number, because the mean of its divisors is an integer number (36660228).

Almost surely, 2^146386631 is an apocalyptic number.

146386631 is a deficient number, since it is larger than the sum of its proper divisors (254281).

146386631 is an equidigital number, since it uses as much as digits as its factorization.

146386631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254280.

The product of its digits is 62208, while the sum is 38.

The square root of 146386631 is about 12099.0343003068. The cubic root of 146386631 is about 527.0281410391.

The spelling of 146386631 in words is "one hundred forty-six million, three hundred eighty-six thousand, six hundred thirty-one".