146135449 has 2 divisors, whose sum is σ = 146135450. Its totient is φ = 146135448.

The previous prime is 146135413. The next prime is 146135477. The reversal of 146135449 is 944531641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104919049 + 41216400 = 10243^2 + 6420^2 .

It is a cyclic number.

It is not a de Polignac number, because 146135449 - 2¹⁵ = 146102681 is a prime.

It is not a weakly prime, because it can be changed into another prime (146135489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73067724 + 73067725.

It is an arithmetic number, because the mean of its divisors is an integer number (73067725).

Almost surely, 2^146135449 is an apocalyptic number.

It is an amenable number.

146135449 is a deficient number, since it is larger than the sum of its proper divisors (1).

146135449 is an equidigital number, since it uses as much as digits as its factorization.

146135449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 146135449 is about 12088.6495937305. The cubic root of 146135449 is about 526.7265293187.

The spelling of 146135449 in words is "one hundred forty-six million, one hundred thirty-five thousand, four hundred forty-nine".