1042125533 has 4 divisors (see below), whose sum is σ = 1042254108. Its totient is φ = 1041996960.

The previous prime is 1042125529. The next prime is 1042125559. The reversal of 1042125533 is 3355212401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3355212401 = 35449 ⋅94649.

It can be written as a sum of positive squares in 2 ways, for example, as 458516569 + 583608964 = 21413^2 + 24158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042125533 - 2² = 1042125529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042125503) 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, 51248 + ... + 68633.

It is an arithmetic number, because the mean of its divisors is an integer number (260563527).

Almost surely, 2^1042125533 is an apocalyptic number.

It is an amenable number.

1042125533 is a deficient number, since it is larger than the sum of its proper divisors (128575).

1042125533 is an equidigital number, since it uses as much as digits as its factorization.

1042125533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128574.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1042125533 is about 32281.9691623668. The cubic root of 1042125533 is about 1013.8491596899.

Adding to 1042125533 its reverse (3355212401), we get a palindrome (4397337934).

The spelling of 1042125533 in words is "one billion, forty-two million, one hundred twenty-five thousand, five hundred thirty-three".