1025305133 has 4 divisors (see below), whose sum is σ = 1027641120. Its totient is φ = 1022969148.

The previous prime is 1025305093. The next prime is 1025305159. The reversal of 1025305133 is 3315035201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3315035201 = 607 ⋅5461343.

It is a cyclic number.

It is not a de Polignac number, because 1025305133 - 2⁶ = 1025305069 is a prime.

It is a super-2 number, since 2×1025305133² = 2102501231512295378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025305099 and 1025305108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025805133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167335 + ... + 1168212.

It is an arithmetic number, because the mean of its divisors is an integer number (256910280).

Almost surely, 2^1025305133 is an apocalyptic number.

It is an amenable number.

1025305133 is a deficient number, since it is larger than the sum of its proper divisors (2335987).

1025305133 is an equidigital number, since it uses as much as digits as its factorization.

1025305133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335986.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1025305133 is about 32020.3862094135. The cubic root of 1025305133 is about 1008.3648780484.

The spelling of 1025305133 in words is "one billion, twenty-five million, three hundred five thousand, one hundred thirty-three".