1473760661 has 2 divisors, whose sum is σ = 1473760662. Its totient is φ = 1473760660.

The previous prime is 1473760643. The next prime is 1473760663. The reversal of 1473760661 is 1660673741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1453058161 + 20702500 = 38119^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1473760661 - 2²⁶ = 1406651797 is a prime.

It is a super-2 number, since 2×1473760661² = 4343940971822313842, which contains 22 as substring.

Together with 1473760663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1473760663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736880330 + 736880331.

It is an arithmetic number, because the mean of its divisors is an integer number (736880331).

Almost surely, 2^1473760661 is an apocalyptic number.

It is an amenable number.

1473760661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1473760661 is an equidigital number, since it uses as much as digits as its factorization.

1473760661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1473760661 is about 38389.5905292047. The cubic root of 1473760661 is about 1138.0001516036. Note that the first 3 decimals are identical.

The spelling of 1473760661 in words is "one billion, four hundred seventy-three million, seven hundred sixty thousand, six hundred sixty-one".