1421907959 has 8 divisors (see below), whose sum is σ = 1506660480. Its totient is φ = 1338147000.

The previous prime is 1421907923. The next prime is 1421907989. The reversal of 1421907959 is 9597091241.

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 1421907959 - 2²⁰ = 1420859383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421907919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244937 + ... + 250674.

It is an arithmetic number, because the mean of its divisors is an integer number (188332560).

Almost surely, 2^1421907959 is an apocalyptic number.

1421907959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1421907959 is a deficient number, since it is larger than the sum of its proper divisors (84752521).

1421907959 is a wasteful number, since it uses less digits than its factorization.

1421907959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495781.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 1421907959 is about 37708.1948520477. The cubic root of 1421907959 is about 1124.4940497588.

The spelling of 1421907959 in words is "one billion, four hundred twenty-one million, nine hundred seven thousand, nine hundred fifty-nine".