1406562481 has 2 divisors, whose sum is σ = 1406562482. Its totient is φ = 1406562480.

The previous prime is 1406562463. The next prime is 1406562527. The reversal of 1406562481 is 1842656041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1406250000 + 312481 = 37500^2 + 559^2 .

It is an emirp because it is prime and its reverse (1842656041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406562481 - 2¹⁵ = 1406529713 is a prime.

It is a super-2 number, since 2×1406562481² = 3956836025913750722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1406562481.

It is not a weakly prime, because it can be changed into another prime (1406562281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703281240 + 703281241.

It is an arithmetic number, because the mean of its divisors is an integer number (703281241).

Almost surely, 2^1406562481 is an apocalyptic number.

It is an amenable number.

1406562481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406562481 is an equidigital number, since it uses as much as digits as its factorization.

1406562481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1406562481 is about 37504.1661819057. The cubic root of 1406562481 is about 1120.4341644245.

The spelling of 1406562481 in words is "one billion, four hundred six million, five hundred sixty-two thousand, four hundred eighty-one".