1534312501 has 4 divisors (see below), whose sum is σ = 1534397292. Its totient is φ = 1534227712.

The previous prime is 1534312477. The next prime is 1534312511. The reversal of 1534312501 is 1052134351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1509322500 + 24990001 = 38850^2 + 4999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1534312501 - 2¹⁹ = 1533788213 is a prime.

It is a super-2 number, since 2×1534312501² = 4708229701449750002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534312511) 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, 3130 + ... + 55483.

It is an arithmetic number, because the mean of its divisors is an integer number (383599323).

Almost surely, 2^1534312501 is an apocalyptic number.

It is an amenable number.

1534312501 is a deficient number, since it is larger than the sum of its proper divisors (84791).

1534312501 is an equidigital number, since it uses as much as digits as its factorization.

1534312501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84790.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1534312501 is about 39170.3012625637. The cubic root of 1534312501 is about 1153.3769676116.

Adding to 1534312501 its reverse (1052134351), we get a palindrome (2586446852).

The spelling of 1534312501 in words is "one billion, five hundred thirty-four million, three hundred twelve thousand, five hundred one".