146779133 has 2 divisors, whose sum is σ = 146779134. Its totient is φ = 146779132.

The previous prime is 146779117. The next prime is 146779147. The reversal of 146779133 is 331977641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119290084 + 27489049 = 10922^2 + 5243^2 .

It is a cyclic number.

It is not a de Polignac number, because 146779133 - 2⁴ = 146779117 is a prime.

It is a super-2 number, since 2×146779133² = 43088227768463378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146779163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73389566 + 73389567.

It is an arithmetic number, because the mean of its divisors is an integer number (73389567).

Almost surely, 2^146779133 is an apocalyptic number.

It is an amenable number.

146779133 is a deficient number, since it is larger than the sum of its proper divisors (1).

146779133 is an equidigital number, since it uses as much as digits as its factorization.

146779133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 41.

The square root of 146779133 is about 12115.2438275092. The cubic root of 146779133 is about 527.4987554907.

The spelling of 146779133 in words is "one hundred forty-six million, seven hundred seventy-nine thousand, one hundred thirty-three".