1206124551 has 48 divisors (see below), whose sum is σ = 1912079520. Its totient is φ = 729630720.

The previous prime is 1206124489. The next prime is 1206124559. The reversal of 1206124551 is 1554216021.

1206124551 is a `hidden beast` number, since 1 + 2 + 0 + 612 + 45 + 5 + 1 = 666.

It is not a de Polignac number, because 1206124551 - 2⁶ = 1206124487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206124559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 477171 + ... + 479691.

It is an arithmetic number, because the mean of its divisors is an integer number (39834990).

Almost surely, 2^1206124551 is an apocalyptic number.

1206124551 is a deficient number, since it is larger than the sum of its proper divisors (705954969).

1206124551 is a wasteful number, since it uses less digits than its factorization.

1206124551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656 (or 2653 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1206124551 is about 34729.3039233440. The cubic root of 1206124551 is about 1064.4633651666.

The spelling of 1206124551 in words is "one billion, two hundred six million, one hundred twenty-four thousand, five hundred fifty-one".