146238137 has 2 divisors, whose sum is σ = 146238138. Its totient is φ = 146238136.

The previous prime is 146238119. The next prime is 146238143. The reversal of 146238137 is 731832641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124902976 + 21335161 = 11176^2 + 4619^2 .

It is a cyclic number.

It is not a de Polignac number, because 146238137 - 2¹⁶ = 146172601 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 146238097 and 146238106.

It is not a weakly prime, because it can be changed into another prime (146238107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73119068 + 73119069.

It is an arithmetic number, because the mean of its divisors is an integer number (73119069).

Almost surely, 2^146238137 is an apocalyptic number.

It is an amenable number.

146238137 is a deficient number, since it is larger than the sum of its proper divisors (1).

146238137 is an equidigital number, since it uses as much as digits as its factorization.

146238137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 146238137 is about 12092.8961378158. The cubic root of 146238137 is about 526.8498756844.

The spelling of 146238137 in words is "one hundred forty-six million, two hundred thirty-eight thousand, one hundred thirty-seven".