1402025461 has 2 divisors, whose sum is σ = 1402025462. Its totient is φ = 1402025460.

The previous prime is 1402025431. The next prime is 1402025473. The reversal of 1402025461 is 1645202041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1305376900 + 96648561 = 36130^2 + 9831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402025461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402025431) 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, 701012730 + 701012731.

It is an arithmetic number, because the mean of its divisors is an integer number (701012731).

Almost surely, 2^1402025461 is an apocalyptic number.

It is an amenable number.

1402025461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402025461 is an equidigital number, since it uses as much as digits as its factorization.

1402025461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1402025461 is about 37443.6304463122. The cubic root of 1402025461 is about 1119.2281727917.

The spelling of 1402025461 in words is "one billion, four hundred two million, twenty-five thousand, four hundred sixty-one".