1071535642 has 4 divisors (see below), whose sum is σ = 1607303466. Its totient is φ = 535767820.

The previous prime is 1071535637. The next prime is 1071535649. The reversal of 1071535642 is 2465351701.

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

It can be written as a sum of positive squares in only one way, i.e., 726356401 + 345179241 = 26951^2 + 18579^2 .

It is a super-2 number, since 2×1071535642² = 2296377264152704328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1071535598 and 1071535607.

It is not an unprimeable number, because it can be changed into a prime (1071535649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267883909 + ... + 267883912.

Almost surely, 2^1071535642 is an apocalyptic number.

1071535642 is a deficient number, since it is larger than the sum of its proper divisors (535767824).

1071535642 is an equidigital number, since it uses as much as digits as its factorization.

1071535642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535767823.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1071535642 is about 32734.3190245345. The cubic root of 1071535642 is about 1023.2981927500.

The spelling of 1071535642 in words is "one billion, seventy-one million, five hundred thirty-five thousand, six hundred forty-two".