1472474981 has 2 divisors, whose sum is σ = 1472474982. Its totient is φ = 1472474980.

The previous prime is 1472474959. The next prime is 1472474989. The reversal of 1472474981 is 1894742741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 977812900 + 494662081 = 31270^2 + 22241^2 .

It is an emirp because it is prime and its reverse (1894742741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1472474981 is a prime.

It is a super-2 number, since 2×1472474981² = 4336365139341900722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1472474989) 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, 736237490 + 736237491.

It is an arithmetic number, because the mean of its divisors is an integer number (736237491).

Almost surely, 2^1472474981 is an apocalyptic number.

It is an amenable number.

1472474981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1472474981 is an equidigital number, since it uses as much as digits as its factorization.

1472474981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 1472474981 is about 38372.8417112937. The cubic root of 1472474981 is about 1137.6691322956.

The spelling of 1472474981 in words is "one billion, four hundred seventy-two million, four hundred seventy-four thousand, nine hundred eighty-one".