1210506745 has 16 divisors (see below), whose sum is σ = 1662393600. Its totient is φ = 828926784.

The previous prime is 1210506727. The next prime is 1210506749. The reversal of 1210506745 is 5476050121.

It is not a de Polignac number, because 1210506745 - 2²⁷ = 1076289017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210506749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2731 + ... + 49279.

It is an arithmetic number, because the mean of its divisors is an integer number (103899600).

Almost surely, 2^1210506745 is an apocalyptic number.

It is an amenable number.

1210506745 is a deficient number, since it is larger than the sum of its proper divisors (451886855).

1210506745 is an equidigital number, since it uses as much as digits as its factorization.

1210506745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47304.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1210506745 is about 34792.3374466275. The cubic root of 1210506745 is about 1065.7509731966.

Adding to 1210506745 its reverse (5476050121), we get a palindrome (6686556866).

The spelling of 1210506745 in words is "one billion, two hundred ten million, five hundred six thousand, seven hundred forty-five".