1719429149 has 8 divisors (see below), whose sum is σ = 1810310880. Its totient is φ = 1628586000.

The previous prime is 1719429137. The next prime is 1719429163. The reversal of 1719429149 is 9419249171.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1719429149 - 2⁴ = 1719429133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1719420149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148334 + ... + 159504.

It is an arithmetic number, because the mean of its divisors is an integer number (226288860).

Almost surely, 2^1719429149 is an apocalyptic number.

1719429149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1719429149 is a deficient number, since it is larger than the sum of its proper divisors (90881731).

1719429149 is a wasteful number, since it uses less digits than its factorization.

1719429149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19291.

The product of its digits is 163296, while the sum is 47.

The square root of 1719429149 is about 41465.9999155935. Note that the first 4 decimals coincide. The cubic root of 1719429149 is about 1198.0127174531.

The spelling of 1719429149 in words is "one billion, seven hundred nineteen million, four hundred twenty-nine thousand, one hundred forty-nine".