1423666541 has 16 divisors (see below), whose sum is σ = 1572480000. Its totient is φ = 1278187200.

The previous prime is 1423666499. The next prime is 1423666567. The reversal of 1423666541 is 1456663241.

It is a cyclic number.

It is not a de Polignac number, because 1423666541 - 2⁶ = 1423666477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423666495 and 1423666504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423666841) 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 15 ways as a sum of consecutive naturals, for example, 294260 + ... + 299058.

It is an arithmetic number, because the mean of its divisors is an integer number (98280000).

Almost surely, 2^1423666541 is an apocalyptic number.

1423666541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1423666541 is a deficient number, since it is larger than the sum of its proper divisors (148813459).

1423666541 is a wasteful number, since it uses less digits than its factorization.

1423666541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140.

The product of its digits is 103680, while the sum is 38.

The square root of 1423666541 is about 37731.5059466224. The cubic root of 1423666541 is about 1124.9574412871.

The spelling of 1423666541 in words is "one billion, four hundred twenty-three million, six hundred sixty-six thousand, five hundred forty-one".