146774143 has 2 divisors, whose sum is σ = 146774144. Its totient is φ = 146774142.

The previous prime is 146774101. The next prime is 146774171. The reversal of 146774143 is 341477641.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146774143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146774743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73387071 + 73387072.

It is an arithmetic number, because the mean of its divisors is an integer number (73387072).

Almost surely, 2^146774143 is an apocalyptic number.

146774143 is a deficient number, since it is larger than the sum of its proper divisors (1).

146774143 is an equidigital number, since it uses as much as digits as its factorization.

146774143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 146774143 is about 12115.0378868578. The cubic root of 146774143 is about 527.4927776914.

The spelling of 146774143 in words is "one hundred forty-six million, seven hundred seventy-four thousand, one hundred forty-three".