1534545121 has 8 divisors (see below), whose sum is σ = 1588228200. Its totient is φ = 1480913280.

The previous prime is 1534545113. The next prime is 1534545151. The reversal of 1534545121 is 1215454351.

It can be written as a sum of positive squares in 4 ways, for example, as 14714896 + 1519830225 = 3836^2 + 38985^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1534545121 - 2³ = 1534545113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1534545151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54141 + ... + 77461.

It is an arithmetic number, because the mean of its divisors is an integer number (198528525).

Almost surely, 2^1534545121 is an apocalyptic number.

It is an amenable number.

1534545121 is a deficient number, since it is larger than the sum of its proper divisors (53683079).

1534545121 is a wasteful number, since it uses less digits than its factorization.

1534545121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25619.

The product of its digits is 12000, while the sum is 31.

The square root of 1534545121 is about 39173.2704914971. The cubic root of 1534545121 is about 1153.4352532155.

Adding to 1534545121 its reverse (1215454351), we get a palindrome (2749999472).

The spelling of 1534545121 in words is "one billion, five hundred thirty-four million, five hundred forty-five thousand, one hundred twenty-one".