1071531701 has 4 divisors (see below), whose sum is σ = 1108481100. Its totient is φ = 1034582304.

The previous prime is 1071531697. The next prime is 1071531707. The reversal of 1071531701 is 1071351701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1071351701 = 7 ⋅153050243.

It can be written as a sum of positive squares in 2 ways, for example, as 426422500 + 645109201 = 20650^2 + 25399^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071531701 - 2² = 1071531697 is a prime.

It is a super-2 number, since 2×1071531701² = 2296360372495906802, 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 (1071531707) 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, 18474656 + ... + 18474713.

It is an arithmetic number, because the mean of its divisors is an integer number (277120275).

Almost surely, 2^1071531701 is an apocalyptic number.

It is an amenable number.

1071531701 is a deficient number, since it is larger than the sum of its proper divisors (36949399).

1071531701 is an equidigital number, since it uses as much as digits as its factorization.

1071531701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36949398.

The product of its (nonzero) digits is 735, while the sum is 26.

The square root of 1071531701 is about 32734.2588277175. The cubic root of 1071531701 is about 1023.2969382193.

The spelling of 1071531701 in words is "one billion, seventy-one million, five hundred thirty-one thousand, seven hundred one".