1206473531 has 8 divisors (see below), whose sum is σ = 1247622144. Its totient is φ = 1165464360.

The previous prime is 1206473509. The next prime is 1206473537. The reversal of 1206473531 is 1353746021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206473531 is a prime.

It is a super-2 number, since 2×1206473531² = 2911156762007215922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206473537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17111 + ... + 52016.

It is an arithmetic number, because the mean of its divisors is an integer number (155952768).

Almost surely, 2^1206473531 is an apocalyptic number.

1206473531 is a deficient number, since it is larger than the sum of its proper divisors (41148613).

1206473531 is an equidigital number, since it uses as much as digits as its factorization.

1206473531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69721.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1206473531 is about 34734.3278472464. The cubic root of 1206473531 is about 1064.5660191871.

The spelling of 1206473531 in words is "one billion, two hundred six million, four hundred seventy-three thousand, five hundred thirty-one".