1400453 has 2 divisors, whose sum is σ = 1400454. Its totient is φ = 1400452.

The previous prime is 1400449. The next prime is 1400479. The reversal of 1400453 is 3540041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1387684 + 12769 = 1178^2 + 113^2 .

It is an emirp because it is prime and its reverse (3540041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400453 - 2² = 1400449 is a prime.

It is a super-2 number, since 2×1400453² = 3922537210418, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700226 + 700227.

It is an arithmetic number, because the mean of its divisors is an integer number (700227).

2^1400453 is an apocalyptic number.

It is an amenable number.

1400453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400453 is an equidigital number, since it uses as much as digits as its factorization.

1400453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1400453 is about 1183.4073685760. The cubic root of 1400453 is about 111.8809587663.

Adding to 1400453 its reverse (3540041), we get a palindrome (4940494).

The spelling of 1400453 in words is "one million, four hundred thousand, four hundred fifty-three".