1452064661 has 4 divisors (see below), whose sum is σ = 1453887372. Its totient is φ = 1450241952.

The previous prime is 1452064657. The next prime is 1452064693. The reversal of 1452064661 is 1664602541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388326436 + 1063738225 = 19706^2 + 32615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1452064661 - 2² = 1452064657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452064261) 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, 910160 + ... + 911753.

It is an arithmetic number, because the mean of its divisors is an integer number (363471843).

Almost surely, 2^1452064661 is an apocalyptic number.

It is an amenable number.

1452064661 is a deficient number, since it is larger than the sum of its proper divisors (1822711).

1452064661 is an equidigital number, since it uses as much as digits as its factorization.

1452064661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822710.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1452064661 is about 38105.9662126549. The cubic root of 1452064661 is about 1132.3881570503.

The spelling of 1452064661 in words is "one billion, four hundred fifty-two million, sixty-four thousand, six hundred sixty-one".