146400769 has 2 divisors, whose sum is σ = 146400770. Its totient is φ = 146400768.

The previous prime is 146400743. The next prime is 146400797. The reversal of 146400769 is 967004641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137757169 + 8643600 = 11737^2 + 2940^2 .

It is a cyclic number.

It is not a de Polignac number, because 146400769 - 2¹³ = 146392577 is a prime.

It is a super-2 number, since 2×146400769² = 42866370327582722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146400739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73200384 + 73200385.

It is an arithmetic number, because the mean of its divisors is an integer number (73200385).

Almost surely, 2^146400769 is an apocalyptic number.

It is an amenable number.

146400769 is a deficient number, since it is larger than the sum of its proper divisors (1).

146400769 is an equidigital number, since it uses as much as digits as its factorization.

146400769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 146400769 is about 12099.6185477064. The cubic root of 146400769 is about 527.0451072606.

The spelling of 146400769 in words is "one hundred forty-six million, four hundred thousand, seven hundred sixty-nine".