1068157445 has 4 divisors (see below), whose sum is σ = 1281788940. Its totient is φ = 854525952.

The previous prime is 1068157439. The next prime is 1068157451. The reversal of 1068157445 is 5447518601.

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

It is an interprime number because it is at equal distance from previous prime (1068157439) and next prime (1068157451).

It can be written as a sum of positive squares in 2 ways, for example, as 283821409 + 784336036 = 16847^2 + 28006^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068157445 - 2⁴ = 1068157429 is a prime.

It is a super-2 number, since 2×1068157445² = 2281920654617856050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106815740 + ... + 106815749.

It is an arithmetic number, because the mean of its divisors is an integer number (320447235).

Almost surely, 2^1068157445 is an apocalyptic number.

It is an amenable number.

1068157445 is a deficient number, since it is larger than the sum of its proper divisors (213631495).

1068157445 is an equidigital number, since it uses as much as digits as its factorization.

1068157445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213631494.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 1068157445 is about 32682.6780573441. The cubic root of 1068157445 is about 1022.2216872350.

The spelling of 1068157445 in words is "one billion, sixty-eight million, one hundred fifty-seven thousand, four hundred forty-five".