1081427517 has 12 divisors (see below), whose sum is σ = 1619916480. Its totient is φ = 720951516.

The previous prime is 1081427513. The next prime is 1081427531. The reversal of 1081427517 is 7157241801.

1081427517 is a `hidden beast` number, since 108 + 14 + 27 + 517 = 666.

It is not a de Polignac number, because 1081427517 - 2² = 1081427513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081427513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224917 + ... + 2225402.

It is an arithmetic number, because the mean of its divisors is an integer number (134993040).

Almost surely, 2^1081427517 is an apocalyptic number.

It is an amenable number.

1081427517 is a deficient number, since it is larger than the sum of its proper divisors (538488963).

1081427517 is an frugal number, since it uses more digits than its factorization.

1081427517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450334 (or 4450322 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 1081427517 is about 32885.0652576515. The cubic root of 1081427517 is about 1026.4374096782.

The spelling of 1081427517 in words is "one billion, eighty-one million, four hundred twenty-seven thousand, five hundred seventeen".