1516212423 has 48 divisors (see below), whose sum is σ = 2480025600. Its totient is φ = 884197440.

The previous prime is 1516212389. The next prime is 1516212443. The reversal of 1516212423 is 3242126151.

1516212423 is a `hidden beast` number, since 1 + 516 + 2 + 124 + 23 = 666.

It is not a de Polignac number, because 1516212423 - 2⁶ = 1516212359 is a prime.

It is a super-2 number, since 2×1516212423² = 4597800223319061858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516212443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1052938 + ... + 1054376.

It is an arithmetic number, because the mean of its divisors is an integer number (51667200).

Almost surely, 2^1516212423 is an apocalyptic number.

1516212423 is a deficient number, since it is larger than the sum of its proper divisors (963813177).

1516212423 is a wasteful number, since it uses less digits than its factorization.

1516212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1849 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1516212423 is about 38938.5724314593. The cubic root of 1516212423 is about 1148.8236043225.

Adding to 1516212423 its reverse (3242126151), we get a palindrome (4758338574).

The spelling of 1516212423 in words is "one billion, five hundred sixteen million, two hundred twelve thousand, four hundred twenty-three".