1081052639 has 8 divisors (see below), whose sum is σ = 1090137312. Its totient is φ = 1071993600.

The previous prime is 1081052549. The next prime is 1081052653. The reversal of 1081052639 is 9362501801.

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 1081052639 - 2⁸ = 1081052383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1081052599 and 1081052608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081052689) 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, 83507 + ... + 95579.

It is an arithmetic number, because the mean of its divisors is an integer number (136267164).

Almost surely, 2^1081052639 is an apocalyptic number.

1081052639 is a deficient number, since it is larger than the sum of its proper divisors (9084673).

1081052639 is a wasteful number, since it uses less digits than its factorization.

1081052639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1081052639 is about 32879.3649421640. The cubic root of 1081052639 is about 1026.3187907637.

The spelling of 1081052639 in words is "one billion, eighty-one million, fifty-two thousand, six hundred thirty-nine".