1210449945 has 8 divisors (see below), whose sum is σ = 1936719936. Its totient is φ = 645573296.

The previous prime is 1210449943. The next prime is 1210449949. The reversal of 1210449945 is 5499440121.

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

It is a cyclic number.

It is not a de Polignac number, because 1210449945 - 2¹ = 1210449943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210449941) 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, 40348317 + ... + 40348346.

It is an arithmetic number, because the mean of its divisors is an integer number (242089992).

Almost surely, 2^1210449945 is an apocalyptic number.

1210449945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1210449945 is a deficient number, since it is larger than the sum of its proper divisors (726269991).

1210449945 is an equidigital number, since it uses as much as digits as its factorization.

1210449945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80696671.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1210449945 is about 34791.5211653644. The cubic root of 1210449945 is about 1065.7343037034.

The spelling of 1210449945 in words is "one billion, two hundred ten million, four hundred forty-nine thousand, nine hundred forty-five".