1025351645 has 16 divisors (see below), whose sum is σ = 1254113280. Its totient is φ = 804633984.

The previous prime is 1025351627. The next prime is 1025351669. The reversal of 1025351645 is 5461535201.

It is a cyclic number.

It is not a de Polignac number, because 1025351645 - 2¹² = 1025347549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47444 + ... + 65586.

It is an arithmetic number, because the mean of its divisors is an integer number (78382080).

Almost surely, 2^1025351645 is an apocalyptic number.

It is an amenable number.

1025351645 is a deficient number, since it is larger than the sum of its proper divisors (228761635).

1025351645 is a wasteful number, since it uses less digits than its factorization.

1025351645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18364.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1025351645 is about 32021.1124884817. The cubic root of 1025351645 is about 1008.3801256583.

Adding to 1025351645 its reverse (5461535201), we get a palindrome (6486886846).

The spelling of 1025351645 in words is "one billion, twenty-five million, three hundred fifty-one thousand, six hundred forty-five".