1429889191 has 4 divisors (see below), whose sum is σ = 1463142472. Its totient is φ = 1396635912.

The previous prime is 1429889113. The next prime is 1429889203. The reversal of 1429889191 is 1919889241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1429889191 - 2¹⁵ = 1429856423 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 (1429889891) 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, 16626576 + ... + 16626661.

It is an arithmetic number, because the mean of its divisors is an integer number (365785618).

Almost surely, 2^1429889191 is an apocalyptic number.

1429889191 is a deficient number, since it is larger than the sum of its proper divisors (33253281).

1429889191 is an equidigital number, since it uses as much as digits as its factorization.

1429889191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33253280.

The product of its digits is 373248, while the sum is 52.

The square root of 1429889191 is about 37813.8756410924. The cubic root of 1429889191 is about 1126.5940703528.

The spelling of 1429889191 in words is "one billion, four hundred twenty-nine million, eight hundred eighty-nine thousand, one hundred ninety-one".