1451122661 has 8 divisors (see below), whose sum is σ = 1468434240. Its totient is φ = 1433833632.

The previous prime is 1451122627. The next prime is 1451122667. The reversal of 1451122661 is 1662211541.

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 1451122661 - 2⁶ = 1451122597 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 (1451122667) 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, 148616 + ... + 158078.

It is an arithmetic number, because the mean of its divisors is an integer number (183554280).

Almost surely, 2^1451122661 is an apocalyptic number.

It is an amenable number.

1451122661 is a deficient number, since it is larger than the sum of its proper divisors (17311579).

1451122661 is an equidigital number, since it uses as much as digits as its factorization.

1451122661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275.

The product of its digits is 2880, while the sum is 29.

The square root of 1451122661 is about 38093.6039381941. The cubic root of 1451122661 is about 1132.1432321455.

The spelling of 1451122661 in words is "one billion, four hundred fifty-one million, one hundred twenty-two thousand, six hundred sixty-one".