1472440661 has 2 divisors, whose sum is σ = 1472440662. Its totient is φ = 1472440660.

The previous prime is 1472440621. The next prime is 1472440687. The reversal of 1472440661 is 1660442741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1310005636 + 162435025 = 36194^2 + 12745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1472440661 - 2⁶ = 1472440597 is a prime.

It is a super-2 number, since 2×1472440661² = 4336163000332233842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1472440621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736220330 + 736220331.

It is an arithmetic number, because the mean of its divisors is an integer number (736220331).

Almost surely, 2^1472440661 is an apocalyptic number.

It is an amenable number.

1472440661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1472440661 is an equidigital number, since it uses as much as digits as its factorization.

1472440661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1472440661 is about 38372.3945174132. The cubic root of 1472440661 is about 1137.6602934113.

The spelling of 1472440661 in words is "one billion, four hundred seventy-two million, four hundred forty thousand, six hundred sixty-one".