146123137 has 4 divisors (see below), whose sum is σ = 147765060. Its totient is φ = 144481216.

The previous prime is 146123093. The next prime is 146123147. The reversal of 146123137 is 731321641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731321641 = 461 ⋅1586381.

It can be written as a sum of positive squares in 2 ways, for example, as 75411856 + 70711281 = 8684^2 + 8409^2 .

It is a cyclic number.

It is not a de Polignac number, because 146123137 - 2²⁷ = 11905409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146123147) 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, 820828 + ... + 821005.

It is an arithmetic number, because the mean of its divisors is an integer number (36941265).

Almost surely, 2^146123137 is an apocalyptic number.

It is an amenable number.

146123137 is a deficient number, since it is larger than the sum of its proper divisors (1641923).

146123137 is an equidigital number, since it uses as much as digits as its factorization.

146123137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641922.

The product of its digits is 3024, while the sum is 28.

The square root of 146123137 is about 12088.1403449828. The cubic root of 146123137 is about 526.7117365603.

Adding to 146123137 its reverse (731321641), we get a palindrome (877444778).

The spelling of 146123137 in words is "one hundred forty-six million, one hundred twenty-three thousand, one hundred thirty-seven".