1067139917 has 4 divisors (see below), whose sum is σ = 1084634076. Its totient is φ = 1049645760.

The previous prime is 1067139859. The next prime is 1067139919. The reversal of 1067139917 is 7199317601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31651876 + 1035488041 = 5626^2 + 32179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067139917 - 2¹² = 1067135821 is a prime.

It is a super-2 number, since 2×1067139917² = 2277575204909533778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067139919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8746988 + ... + 8747109.

It is an arithmetic number, because the mean of its divisors is an integer number (271158519).

Almost surely, 2^1067139917 is an apocalyptic number.

It is an amenable number.

1067139917 is a deficient number, since it is larger than the sum of its proper divisors (17494159).

1067139917 is an equidigital number, since it uses as much as digits as its factorization.

1067139917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17494158.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 1067139917 is about 32667.1075701538. The cubic root of 1067139917 is about 1021.8969942639.

The spelling of 1067139917 in words is "one billion, sixty-seven million, one hundred thirty-nine thousand, nine hundred seventeen".