1025806741 has 8 divisors (see below), whose sum is σ = 1093440600. Its totient is φ = 958983168.

The previous prime is 1025806723. The next prime is 1025806801. The reversal of 1025806741 is 1476085201.

It can be written as a sum of positive squares in 4 ways, for example, as 110986225 + 914820516 = 10535^2 + 30246^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025806741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025806697 and 1025806706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025806841) 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, 199956 + ... + 205021.

It is an arithmetic number, because the mean of its divisors is an integer number (136680075).

Almost surely, 2^1025806741 is an apocalyptic number.

It is an amenable number.

1025806741 is a deficient number, since it is larger than the sum of its proper divisors (67633859).

1025806741 is a wasteful number, since it uses less digits than its factorization.

1025806741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405143.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1025806741 is about 32028.2178867323. The cubic root of 1025806741 is about 1008.5292913570.

The spelling of 1025806741 in words is "one billion, twenty-five million, eight hundred six thousand, seven hundred forty-one".