1029354861 has 4 divisors (see below), whose sum is σ = 1372473152. Its totient is φ = 686236572.

The previous prime is 1029354853. The next prime is 1029354863. The reversal of 1029354861 is 1684539201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1029354861 - 2³ = 1029354853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029354863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171559141 + ... + 171559146.

It is an arithmetic number, because the mean of its divisors is an integer number (343118288).

Almost surely, 2^1029354861 is an apocalyptic number.

It is an amenable number.

1029354861 is a deficient number, since it is larger than the sum of its proper divisors (343118291).

1029354861 is an equidigital number, since it uses as much as digits as its factorization.

1029354861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343118290.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1029354861 is about 32083.5606035240. The cubic root of 1029354861 is about 1009.6907398735.

The spelling of 1029354861 in words is "one billion, twenty-nine million, three hundred fifty-four thousand, eight hundred sixty-one".