131071401 has 6 divisors (see below), whose sum is σ = 189325370. Its totient is φ = 87380928.

The previous prime is 131071399. The next prime is 131071403. The reversal of 131071401 is 104170131.

It is an interprime number because it is at equal distance from previous prime (131071399) and next prime (131071403).

It can be written as a sum of positive squares in only one way, i.e., 98307225 + 32764176 = 9915^2 + 5724^2 .

It is not a de Polignac number, because 131071401 - 2¹ = 131071399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131071403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7281736 + ... + 7281753.

Almost surely, 2^131071401 is an apocalyptic number.

It is an amenable number.

131071401 is a deficient number, since it is larger than the sum of its proper divisors (58253969).

131071401 is a wasteful number, since it uses less digits than its factorization.

131071401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14563495 (or 14563492 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 131071401 is about 11448.6418845206. The cubic root of 131071401 is about 507.9675628223.

The spelling of 131071401 in words is "one hundred thirty-one million, seventy-one thousand, four hundred one".