1400212143 has 16 divisors (see below), whose sum is σ = 2262969600. Its totient is φ = 848613240.

The previous prime is 1400212129. The next prime is 1400212181. The reversal of 1400212143 is 3412120041.

It is not a de Polignac number, because 1400212143 - 2¹⁰ = 1400211119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400212103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356963 + ... + 2357556.

It is an arithmetic number, because the mean of its divisors is an integer number (141435600).

Almost surely, 2^1400212143 is an apocalyptic number.

1400212143 is a deficient number, since it is larger than the sum of its proper divisors (862757457).

1400212143 is a wasteful number, since it uses less digits than its factorization.

1400212143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714539 (or 4714533 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1400212143 is about 37419.4086404369. The cubic root of 1400212143 is about 1118.7454444724.

Adding to 1400212143 its reverse (3412120041), we get a palindrome (4812332184).

The spelling of 1400212143 in words is "one billion, four hundred million, two hundred twelve thousand, one hundred forty-three".