1421823613 has 8 divisors (see below), whose sum is σ = 1625173760. Its totient is φ = 1218531600.

The previous prime is 1421823607. The next prime is 1421823619. The reversal of 1421823613 is 3163281241.

It is an interprime number because it is at equal distance from previous prime (1421823607) and next prime (1421823619).

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 1421823613 - 2²¹ = 1419726461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421823619) 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, 73228 + ... + 90586.

It is an arithmetic number, because the mean of its divisors is an integer number (203146720).

Almost surely, 2^1421823613 is an apocalyptic number.

It is an amenable number.

1421823613 is a deficient number, since it is larger than the sum of its proper divisors (203350147).

1421823613 is a wasteful number, since it uses less digits than its factorization.

1421823613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29067.

The product of its digits is 6912, while the sum is 31.

The square root of 1421823613 is about 37707.0764313544. The cubic root of 1421823613 is about 1124.4718147400.

The spelling of 1421823613 in words is "one billion, four hundred twenty-one million, eight hundred twenty-three thousand, six hundred thirteen".