1423736139 has 64 divisors (see below), whose sum is σ = 2341785600. Its totient is φ = 751379328.

The previous prime is 1423736137. The next prime is 1423736159. The reversal of 1423736139 is 9316373241.

It is not a de Polignac number, because 1423736139 - 2¹ = 1423736137 is a prime.

It is a super-3 number, since 3×1423736139³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1423736097 and 1423736106.

It is not an unprimeable number, because it can be changed into a prime (1423736137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4637424 + ... + 4637730.

It is an arithmetic number, because the mean of its divisors is an integer number (36590400).

Almost surely, 2^1423736139 is an apocalyptic number.

1423736139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1423736139 is a deficient number, since it is larger than the sum of its proper divisors (918049461).

1423736139 is a wasteful number, since it uses less digits than its factorization.

1423736139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

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

The square root of 1423736139 is about 37732.4282149983. The cubic root of 1423736139 is about 1124.9757727128.

The spelling of 1423736139 in words is "one billion, four hundred twenty-three million, seven hundred thirty-six thousand, one hundred thirty-nine".