1450500661 has 4 divisors (see below), whose sum is σ = 1477868652. Its totient is φ = 1423132672.

The previous prime is 1450500647. The next prime is 1450500683. The reversal of 1450500661 is 1660050541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1660050541 = 229 ⋅7249129.

It can be written as a sum of positive squares in 2 ways, for example, as 1259895025 + 190605636 = 35495^2 + 13806^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450500661 - 2⁵ = 1450500629 is a prime.

It is a super-2 number, since 2×1450500661² = 4207904335122873842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450500361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13683916 + ... + 13684021.

It is an arithmetic number, because the mean of its divisors is an integer number (369467163).

Almost surely, 2^1450500661 is an apocalyptic number.

It is an amenable number.

1450500661 is a deficient number, since it is larger than the sum of its proper divisors (27367991).

1450500661 is an equidigital number, since it uses as much as digits as its factorization.

1450500661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27367990.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1450500661 is about 38085.4389629423. The cubic root of 1450500661 is about 1131.9814508004.

The spelling of 1450500661 in words is "one billion, four hundred fifty million, five hundred thousand, six hundred sixty-one".