1534025243 has 4 divisors (see below), whose sum is σ = 1624262040. Its totient is φ = 1443788448.

The previous prime is 1534025237. The next prime is 1534025261. The reversal of 1534025243 is 3425204351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1534025243 is a prime.

It is a super-2 number, since 2×1534025243² = 4706466892322418098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1534025263) 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, 45118373 + ... + 45118406.

It is an arithmetic number, because the mean of its divisors is an integer number (406065510).

Almost surely, 2^1534025243 is an apocalyptic number.

1534025243 is a deficient number, since it is larger than the sum of its proper divisors (90236797).

1534025243 is an equidigital number, since it uses as much as digits as its factorization.

1534025243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90236796.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1534025243 is about 39166.6343077881. The cubic root of 1534025243 is about 1153.3049837014.

Adding to 1534025243 its reverse (3425204351), we get a palindrome (4959229594).

The spelling of 1534025243 in words is "one billion, five hundred thirty-four million, twenty-five thousand, two hundred forty-three".