146695429721 has 2 divisors, whose sum is σ = 146695429722. Its totient is φ = 146695429720.

The previous prime is 146695429717. The next prime is 146695429787. The reversal of 146695429721 is 127924596641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140633250121 + 6062179600 = 375011^2 + 77860^2 .

It is a cyclic number.

It is not a de Polignac number, because 146695429721 - 2² = 146695429717 is a prime.

It is not a weakly prime, because it can be changed into another prime (146695449721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73347714860 + 73347714861.

It is an arithmetic number, because the mean of its divisors is an integer number (73347714861).

Almost surely, 2^146695429721 is an apocalyptic number.

It is an amenable number.

146695429721 is a deficient number, since it is larger than the sum of its proper divisors (1).

146695429721 is an equidigital number, since it uses as much as digits as its factorization.

146695429721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The spelling of 146695429721 in words is "one hundred forty-six billion, six hundred ninety-five million, four hundred twenty-nine thousand, seven hundred twenty-one".