1025082739 has 4 divisors (see below), whose sum is σ = 1028980656. Its totient is φ = 1021184824.

The previous prime is 1025082733. The next prime is 1025082767. The reversal of 1025082739 is 9372805201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025082739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025082698 and 1025082707.

It is not an unprimeable number, because it can be changed into a prime (1025082733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948564 + ... + 1949089.

It is an arithmetic number, because the mean of its divisors is an integer number (257245164).

Almost surely, 2^1025082739 is an apocalyptic number.

1025082739 is a deficient number, since it is larger than the sum of its proper divisors (3897917).

1025082739 is an equidigital number, since it uses as much as digits as its factorization.

1025082739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897916.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1025082739 is about 32016.9133271776. The cubic root of 1025082739 is about 1008.2919662529.

The spelling of 1025082739 in words is "one billion, twenty-five million, eighty-two thousand, seven hundred thirty-nine".