1400264497 has 2 divisors, whose sum is σ = 1400264498. Its totient is φ = 1400264496.

The previous prime is 1400264479. The next prime is 1400264543. The reversal of 1400264497 is 7944620041.

It is a happy number.

Together with previous prime (1400264479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1327946481 + 72318016 = 36441^2 + 8504^2 .

It is an emirp because it is prime and its reverse (7944620041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400264497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400264407) 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, 700132248 + 700132249.

It is an arithmetic number, because the mean of its divisors is an integer number (700132249).

Almost surely, 2^1400264497 is an apocalyptic number.

It is an amenable number.

1400264497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400264497 is an equidigital number, since it uses as much as digits as its factorization.

1400264497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1400264497 is about 37420.1081906507. The cubic root of 1400264497 is about 1118.7593876141.

The spelling of 1400264497 in words is "one billion, four hundred million, two hundred sixty-four thousand, four hundred ninety-seven".