1071157207 has 4 divisors (see below), whose sum is σ = 1087144696. Its totient is φ = 1055169720.

The previous prime is 1071157201. The next prime is 1071157211. The reversal of 1071157207 is 7027511701.

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

It is a cyclic number.

It is not a de Polignac number, because 1071157207 - 2²³ = 1062768599 is a prime.

It is a super-2 number, since 2×1071157207² = 2294755524216081698, 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 (1071157201) 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, 7993644 + ... + 7993777.

It is an arithmetic number, because the mean of its divisors is an integer number (271786174).

Almost surely, 2^1071157207 is an apocalyptic number.

1071157207 is a deficient number, since it is larger than the sum of its proper divisors (15987489).

1071157207 is an equidigital number, since it uses as much as digits as its factorization.

1071157207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987488.

The product of its (nonzero) digits is 3430, while the sum is 31.

The square root of 1071157207 is about 32728.5381127847. The cubic root of 1071157207 is about 1023.1777122502.

Adding to 1071157207 its reverse (7027511701), we get a palindrome (8098668908).

The spelling of 1071157207 in words is "one billion, seventy-one million, one hundred fifty-seven thousand, two hundred seven".