1534521434 has 8 divisors (see below), whose sum is σ = 2422928640. Its totient is φ = 726878556.

The previous prime is 1534521431. The next prime is 1534521449. The reversal of 1534521434 is 4341254351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1534521434.

It is not an unprimeable number, because it can be changed into a prime (1534521431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20191034 + ... + 20191109.

It is an arithmetic number, because the mean of its divisors is an integer number (302866080).

Almost surely, 2^1534521434 is an apocalyptic number.

1534521434 is a deficient number, since it is larger than the sum of its proper divisors (888407206).

1534521434 is a wasteful number, since it uses less digits than its factorization.

1534521434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40382164.

The product of its digits is 28800, while the sum is 32.

The square root of 1534521434 is about 39172.9681540728. The cubic root of 1534521434 is about 1153.4293184359.

Adding to 1534521434 its reverse (4341254351), we get a palindrome (5875775785).

The spelling of 1534521434 in words is "one billion, five hundred thirty-four million, five hundred twenty-one thousand, four hundred thirty-four".