1025133361 has 20 divisors (see below), whose sum is σ = 1199948400. Its totient is φ = 875728392.

The previous prime is 1025133349. The next prime is 1025133377. The reversal of 1025133361 is 1633315201.

1025133361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025133361 - 2²³ = 1016744753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025133301) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1005510 + ... + 1006528.

It is an arithmetic number, because the mean of its divisors is an integer number (59997420).

Almost surely, 2^1025133361 is an apocalyptic number.

It is an amenable number.

1025133361 is a deficient number, since it is larger than the sum of its proper divisors (174815039).

1025133361 is an frugal number, since it uses more digits than its factorization.

1025133361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1025133361 is about 32017.7038683288. The cubic root of 1025133361 is about 1008.3085635849.

Adding to 1025133361 its reverse (1633315201), we get a palindrome (2658448562).

The spelling of 1025133361 in words is "one billion, twenty-five million, one hundred thirty-three thousand, three hundred sixty-one".