1534213623 has 16 divisors (see below), whose sum is σ = 2081116800. Its totient is φ = 1005091680.

The previous prime is 1534213609. The next prime is 1534213627. The reversal of 1534213623 is 3263124351.

It is not a de Polignac number, because 1534213623 - 2⁴ = 1534213607 is a prime.

It is a super-2 number, since 2×1534213623² = 4707622881997572258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534213627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227068 + ... + 233726.

It is an arithmetic number, because the mean of its divisors is an integer number (130069800).

Almost surely, 2^1534213623 is an apocalyptic number.

1534213623 is a deficient number, since it is larger than the sum of its proper divisors (546903177).

1534213623 is a wasteful number, since it uses less digits than its factorization.

1534213623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982.

The product of its digits is 12960, while the sum is 30.

The square root of 1534213623 is about 39169.0390870136. The cubic root of 1534213623 is about 1153.3521908125.

Adding to 1534213623 its reverse (3263124351), we get a palindrome (4797337974).

The spelling of 1534213623 in words is "one billion, five hundred thirty-four million, two hundred thirteen thousand, six hundred twenty-three".