1400051 has 2 divisors, whose sum is σ = 1400052. Its totient is φ = 1400050.

The previous prime is 1400039. The next prime is 1400081. The reversal of 1400051 is 1500041.

It is a weak prime.

It is an emirp because it is prime and its reverse (1500041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400051 - 2¹⁴ = 1383667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1400081) 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, 700025 + 700026.

It is an arithmetic number, because the mean of its divisors is an integer number (700026).

2^1400051 is an apocalyptic number.

1400051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400051 is an equidigital number, since it uses as much as digits as its factorization.

1400051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1400051 is about 1183.2375078572. The cubic root of 1400051 is about 111.8702525996.

Adding to 1400051 its reverse (1500041), we get a palindrome (2900092).

The spelling of 1400051 in words is "one million, four hundred thousand, fifty-one".