1020125533 has 8 divisors (see below), whose sum is σ = 1168986368. Its totient is φ = 872046864.

The previous prime is 1020125471. The next prime is 1020125543. The reversal of 1020125533 is 3355210201.

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 1020125533 - 2²¹ = 1018028381 is a prime.

It is a super-2 number, since 2×1020125533² = 2081312206157068178, 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 (1020125543) 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, 192741 + ... + 197962.

It is an arithmetic number, because the mean of its divisors is an integer number (146123296).

Almost surely, 2^1020125533 is an apocalyptic number.

It is an amenable number.

1020125533 is a deficient number, since it is larger than the sum of its proper divisors (148860835).

1020125533 is an equidigital number, since it uses as much as digits as its factorization.

1020125533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391083.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1020125533 is about 31939.4040802267. The cubic root of 1020125533 is about 1006.6640034114.

Adding to 1020125533 its reverse (3355210201), we get a palindrome (4375335734).

The spelling of 1020125533 in words is "one billion, twenty million, one hundred twenty-five thousand, five hundred thirty-three".