1212462045 has 48 divisors (see below), whose sum is σ = 2172970800. Its totient is φ = 624983040.

The previous prime is 1212461989. The next prime is 1212462077. The reversal of 1212462045 is 5402642121.

1212462045 is a `hidden beast` number, since 12 + 1 + 24 + 620 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 168921 + 1212293124 = 411^2 + 34818^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1212462045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198091 + ... + 204119.

It is an arithmetic number, because the mean of its divisors is an integer number (45270225).

Almost surely, 2^1212462045 is an apocalyptic number.

1212462045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1212462045 is a deficient number, since it is larger than the sum of its proper divisors (960508755).

1212462045 is a wasteful number, since it uses less digits than its factorization.

1212462045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190 (or 6187 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1212462045 is about 34820.4256866570. The cubic root of 1212462045 is about 1066.3244911026.

The spelling of 1212462045 in words is "one billion, two hundred twelve million, four hundred sixty-two thousand, forty-five".