146429669 has 2 divisors, whose sum is σ = 146429670. Its totient is φ = 146429668.

The previous prime is 146429627. The next prime is 146429693. The reversal of 146429669 is 966924641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145684900 + 744769 = 12070^2 + 863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146429669 is a prime.

It is a super-2 number, since 2×146429669² = 42883295926899122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146429369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73214834 + 73214835.

It is an arithmetic number, because the mean of its divisors is an integer number (73214835).

Almost surely, 2^146429669 is an apocalyptic number.

It is an amenable number.

146429669 is a deficient number, since it is larger than the sum of its proper divisors (1).

146429669 is an equidigital number, since it uses as much as digits as its factorization.

146429669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The square root of 146429669 is about 12100.8127412997. The cubic root of 146429669 is about 527.0797851327.

The spelling of 146429669 in words is "one hundred forty-six million, four hundred twenty-nine thousand, six hundred sixty-nine".