11860531 has 4 divisors (see below), whose sum is σ = 11978064. Its totient is φ = 11743000.

The previous prime is 11860517. The next prime is 11860547. The reversal of 11860531 is 13506811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13506811 = 59 ⋅228929.

It is a cyclic number.

It is not a de Polignac number, because 11860531 - 2¹³ = 11852339 is a prime.

It is a super-2 number, since 2×11860531² = 281344391203922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11860496 and 11860505.

It is not an unprimeable number, because it can be changed into a prime (11860031) 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, 58615 + ... + 58816.

It is an arithmetic number, because the mean of its divisors is an integer number (2994516).

Almost surely, 2^11860531 is an apocalyptic number.

11860531 is a deficient number, since it is larger than the sum of its proper divisors (117533).

11860531 is a wasteful number, since it uses less digits than its factorization.

11860531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117532.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 11860531 is about 3443.9121649659. The cubic root of 11860531 is about 228.0524335651.

The spelling of 11860531 in words is "eleven million, eight hundred sixty thousand, five hundred thirty-one".