1206354461 has 8 divisors (see below), whose sum is σ = 1299438840. Its totient is φ = 1113311232.

The previous prime is 1206354449. The next prime is 1206354463. The reversal of 1206354461 is 1644536021.

It can be written as a sum of positive squares in 4 ways, for example, as 152053561 + 1054300900 = 12331^2 + 32470^2 .

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-1206354461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206354463) 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, 80021 + ... + 93893.

It is an arithmetic number, because the mean of its divisors is an integer number (162429855).

Almost surely, 2^1206354461 is an apocalyptic number.

It is an amenable number.

1206354461 is a deficient number, since it is larger than the sum of its proper divisors (93084379).

1206354461 is a wasteful number, since it uses less digits than its factorization.

1206354461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20575.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1206354461 is about 34732.6137945304. The cubic root of 1206354461 is about 1064.5309964417.

The spelling of 1206354461 in words is "one billion, two hundred six million, three hundred fifty-four thousand, four hundred sixty-one".