1449660761 has 4 divisors (see below), whose sum is σ = 1450198992. Its totient is φ = 1449122532.

The previous prime is 1449660757. The next prime is 1449660769. The reversal of 1449660761 is 1670669441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1449660761 - 2² = 1449660757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449660769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265055 + ... + 270468.

It is an arithmetic number, because the mean of its divisors is an integer number (362549748).

Almost surely, 2^1449660761 is an apocalyptic number.

It is an amenable number.

1449660761 is a deficient number, since it is larger than the sum of its proper divisors (538231).

1449660761 is an equidigital number, since it uses as much as digits as its factorization.

1449660761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538230.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1449660761 is about 38074.4108424543. The cubic root of 1449660761 is about 1131.7629205570.

It can be divided in two parts, 14496 and 60761, that added together give a palindrome (75257).

The spelling of 1449660761 in words is "one billion, four hundred forty-nine million, six hundred sixty thousand, seven hundred sixty-one".