146772749 has 2 divisors, whose sum is σ = 146772750. Its totient is φ = 146772748.

The previous prime is 146772733. The next prime is 146772761. The reversal of 146772749 is 947277641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145684900 + 1087849 = 12070^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 146772749 - 2⁴ = 146772733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146772149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73386374 + 73386375.

It is an arithmetic number, because the mean of its divisors is an integer number (73386375).

Almost surely, 2^146772749 is an apocalyptic number.

It is an amenable number.

146772749 is a deficient number, since it is larger than the sum of its proper divisors (1).

146772749 is an equidigital number, since it uses as much as digits as its factorization.

146772749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 47.

The square root of 146772749 is about 12114.9803549160. The cubic root of 146772749 is about 527.4911077168.

The spelling of 146772749 in words is "one hundred forty-six million, seven hundred seventy-two thousand, seven hundred forty-nine".