1071055642 has 12 divisors (see below), whose sum is σ = 1660083498. Its totient is φ = 518251800.

The previous prime is 1071055621. The next prime is 1071055663. The reversal of 1071055642 is 2465501701.

It is an interprime number because it is at equal distance from previous prime (1071055621) and next prime (1071055663).

It can be written as a sum of positive squares in only one way, i.e., 902341521 + 168714121 = 30039^2 + 12989^2 .

It is a super-2 number, since 2×1071055642² = 2294320376520064328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276709 + ... + 280552.

Almost surely, 2^1071055642 is an apocalyptic number.

1071055642 is a deficient number, since it is larger than the sum of its proper divisors (589027856).

1071055642 is an equidigital number, since it uses as much as digits as its factorization.

1071055642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557325 (or 557294 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1071055642 is about 32726.9864484954. The cubic root of 1071055642 is about 1023.1453726682.

The spelling of 1071055642 in words is "one billion, seventy-one million, fifty-five thousand, six hundred forty-two".