1429105857 has 4 divisors (see below), whose sum is σ = 1905474480. Its totient is φ = 952737236.

The previous prime is 1429105849. The next prime is 1429105907. The reversal of 1429105857 is 7585019241.

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 a cyclic number.

It is not a de Polignac number, because 1429105857 - 2³ = 1429105849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1429105807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238184307 + ... + 238184312.

It is an arithmetic number, because the mean of its divisors is an integer number (476368620).

Almost surely, 2^1429105857 is an apocalyptic number.

It is an amenable number.

1429105857 is a deficient number, since it is larger than the sum of its proper divisors (476368623).

1429105857 is an equidigital number, since it uses as much as digits as its factorization.

1429105857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476368622.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 1429105857 is about 37803.5164634191. The cubic root of 1429105857 is about 1126.3883060071.

The spelling of 1429105857 in words is "one billion, four hundred twenty-nine million, one hundred five thousand, eight hundred fifty-seven".