146631113 has 4 divisors (see below), whose sum is σ = 154348560. Its totient is φ = 138913668.

The previous prime is 146631101. The next prime is 146631127. The reversal of 146631113 is 311136641.

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: 311136641 = 349 ⋅891509.

It is a cyclic number.

It is not a de Polignac number, because 146631113 - 2⁴ = 146631097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146631013) 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, 3858695 + ... + 3858732.

It is an arithmetic number, because the mean of its divisors is an integer number (38587140).

Almost surely, 2^146631113 is an apocalyptic number.

It is an amenable number.

146631113 is a deficient number, since it is larger than the sum of its proper divisors (7717447).

146631113 is an equidigital number, since it uses as much as digits as its factorization.

146631113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717446.

The product of its digits is 1296, while the sum is 26.

The square root of 146631113 is about 12109.1334537200. The cubic root of 146631113 is about 527.3213764457.

Adding to 146631113 its reverse (311136641), we get a palindrome (457767754).

The spelling of 146631113 in words is "one hundred forty-six million, six hundred thirty-one thousand, one hundred thirteen".