1423639137 has 8 divisors (see below), whose sum is σ = 1916979840. Its totient is φ = 939695600.

The previous prime is 1423639103. The next prime is 1423639193. The reversal of 1423639137 is 7319363241.

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 1423639137 - 2¹⁰ = 1423638113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423639095 and 1423639104.

It is not an unprimeable number, because it can be changed into a prime (1423639037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2348937 + ... + 2349542.

It is an arithmetic number, because the mean of its divisors is an integer number (239622480).

Almost surely, 2^1423639137 is an apocalyptic number.

It is an amenable number.

1423639137 is a deficient number, since it is larger than the sum of its proper divisors (493340703).

1423639137 is a wasteful number, since it uses less digits than its factorization.

1423639137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698583.

The product of its digits is 81648, while the sum is 39.

The square root of 1423639137 is about 37731.1428000796. The cubic root of 1423639137 is about 1124.9502231803.

The spelling of 1423639137 in words is "one billion, four hundred twenty-three million, six hundred thirty-nine thousand, one hundred thirty-seven".