1423142623 has 12 divisors (see below), whose sum is σ = 1661484792. Its totient is φ = 1215421200.

The previous prime is 1423142587. The next prime is 1423142647. The reversal of 1423142623 is 3262413241.

It is a happy number.

It is not a de Polignac number, because 1423142623 - 2⁹ = 1423142111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423142591 and 1423142600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423142683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38853 + ... + 65998.

It is an arithmetic number, because the mean of its divisors is an integer number (138457066).

Almost surely, 2^1423142623 is an apocalyptic number.

1423142623 is a deficient number, since it is larger than the sum of its proper divisors (238342169).

1423142623 is a wasteful number, since it uses less digits than its factorization.

1423142623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105142 (or 105135 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 1423142623 is about 37724.5625952111. The cubic root of 1423142623 is about 1124.8194272814.

Adding to 1423142623 its reverse (3262413241), we get a palindrome (4685555864).

The spelling of 1423142623 in words is "one billion, four hundred twenty-three million, one hundred forty-two thousand, six hundred twenty-three".