146123971 has 4 divisors (see below), whose sum is σ = 166998832. Its totient is φ = 125249112.

The previous prime is 146123969. The next prime is 146124031. The reversal of 146123971 is 179321641.

146123971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179321641 = 10903 ⋅16447.

It is a cyclic number.

It is not a de Polignac number, because 146123971 - 2¹ = 146123969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146123951) 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, 10437420 + ... + 10437433.

It is an arithmetic number, because the mean of its divisors is an integer number (41749708).

Almost surely, 2^146123971 is an apocalyptic number.

146123971 is a deficient number, since it is larger than the sum of its proper divisors (20874861).

146123971 is an equidigital number, since it uses as much as digits as its factorization.

146123971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20874860.

The product of its digits is 9072, while the sum is 34.

The square root of 146123971 is about 12088.1748415549. The cubic root of 146123971 is about 526.7127386301.

The spelling of 146123971 in words is "one hundred forty-six million, one hundred twenty-three thousand, nine hundred seventy-one".