1429434661 has 2 divisors, whose sum is σ = 1429434662. Its totient is φ = 1429434660.

The previous prime is 1429434599. The next prime is 1429434689. The reversal of 1429434661 is 1664349241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1350562500 + 78872161 = 36750^2 + 8881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429434661 - 2²⁷ = 1295216933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429434361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714717330 + 714717331.

It is an arithmetic number, because the mean of its divisors is an integer number (714717331).

Almost surely, 2^1429434661 is an apocalyptic number.

It is an amenable number.

1429434661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429434661 is an equidigital number, since it uses as much as digits as its factorization.

1429434661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 1429434661 is about 37807.8650679987. The cubic root of 1429434661 is about 1126.4746846283.

The spelling of 1429434661 in words is "one billion, four hundred twenty-nine million, four hundred thirty-four thousand, six hundred sixty-one".