1400005051 has 8 divisors (see below), whose sum is σ = 1452743424. Its totient is φ = 1348184040.

The previous prime is 1400005049. The next prime is 1400005067. The reversal of 1400005051 is 1505000041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400005051 - 2¹ = 1400005049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400005031) 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 in 7 ways as a sum of consecutive naturals, for example, 226231 + ... + 232336.

It is an arithmetic number, because the mean of its divisors is an integer number (181592928).

Almost surely, 2^1400005051 is an apocalyptic number.

1400005051 is a deficient number, since it is larger than the sum of its proper divisors (52738373).

1400005051 is an equidigital number, since it uses as much as digits as its factorization.

1400005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458681.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1400005051 is about 37416.6413645052. The cubic root of 1400005051 is about 1118.6902874364.

Adding to 1400005051 its reverse (1505000041), we get a palindrome (2905005092).

The spelling of 1400005051 in words is "one billion, four hundred million, five thousand, fifty-one".