1400573957 has 2 divisors, whose sum is σ = 1400573958. Its totient is φ = 1400573956.

The previous prime is 1400573953. The next prime is 1400573989. The reversal of 1400573957 is 7593750041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 911677636 + 488896321 = 30194^2 + 22111^2 .

It is an emirp because it is prime and its reverse (7593750041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400573957 - 2² = 1400573953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400573953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700286978 + 700286979.

It is an arithmetic number, because the mean of its divisors is an integer number (700286979).

Almost surely, 2^1400573957 is an apocalyptic number.

It is an amenable number.

1400573957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400573957 is an equidigital number, since it uses as much as digits as its factorization.

1400573957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 1400573957 is about 37424.2429048338. The cubic root of 1400573957 is about 1118.8417972302.

The spelling of 1400573957 in words is "one billion, four hundred million, five hundred seventy-three thousand, nine hundred fifty-seven".