1421570623 has 8 divisors (see below), whose sum is σ = 1564529616. Its totient is φ = 1280899200.

The previous prime is 1421570597. The next prime is 1421570641. The reversal of 1421570623 is 3260751241.

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 1421570623 - 2²⁵ = 1388016191 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 (1421570663) 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 7 ways as a sum of consecutive naturals, for example, 570588 + ... + 573073.

It is an arithmetic number, because the mean of its divisors is an integer number (195566202).

Almost surely, 2^1421570623 is an apocalyptic number.

1421570623 is a deficient number, since it is larger than the sum of its proper divisors (142958993).

1421570623 is a wasteful number, since it uses less digits than its factorization.

1421570623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143785.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1421570623 is about 37703.7216067592. The cubic root of 1421570623 is about 1124.4051170624.

The spelling of 1421570623 in words is "one billion, four hundred twenty-one million, five hundred seventy thousand, six hundred twenty-three".