1400165453 has 2 divisors, whose sum is σ = 1400165454. Its totient is φ = 1400165452.

The previous prime is 1400165413. The next prime is 1400165467. The reversal of 1400165453 is 3545610041.

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., 744907849 + 655257604 = 27293^2 + 25598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400165453 - 2⁸ = 1400165197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400165413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700082726 + 700082727.

It is an arithmetic number, because the mean of its divisors is an integer number (700082727).

Almost surely, 2^1400165453 is an apocalyptic number.

It is an amenable number.

1400165453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400165453 is an equidigital number, since it uses as much as digits as its factorization.

1400165453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1400165453 is about 37418.7847611330. The cubic root of 1400165453 is about 1118.7330094982.

Adding to 1400165453 its reverse (3545610041), we get a palindrome (4945775494).

The spelling of 1400165453 in words is "one billion, four hundred million, one hundred sixty-five thousand, four hundred fifty-three".