146232457 has 4 divisors (see below), whose sum is σ = 167122816. Its totient is φ = 125342100.

The previous prime is 146232421. The next prime is 146232461. The reversal of 146232457 is 754232641.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146232457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146232407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10445169 + ... + 10445182.

It is an arithmetic number, because the mean of its divisors is an integer number (41780704).

Almost surely, 2^146232457 is an apocalyptic number.

It is an amenable number.

146232457 is a deficient number, since it is larger than the sum of its proper divisors (20890359).

146232457 is an equidigital number, since it uses as much as digits as its factorization.

146232457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20890358.

The product of its digits is 40320, while the sum is 34.

The square root of 146232457 is about 12092.6612869128. The cubic root of 146232457 is about 526.8430545134.

It can be divided in two parts, 146232 and 457, that added together give a square (146689 = 383²).

The spelling of 146232457 in words is "one hundred forty-six million, two hundred thirty-two thousand, four hundred fifty-seven".