1400455143 has 16 divisors (see below), whose sum is σ = 2130824160. Its totient is φ = 908402688.

The previous prime is 1400455129. The next prime is 1400455151. The reversal of 1400455143 is 3415540041.

It is a happy number.

1400455143 is a `hidden beast` number, since 140 + 0 + 4 + 5 + 514 + 3 = 666.

It is not a de Polignac number, because 1400455143 - 2⁴ = 1400455127 is a prime.

It is a super-2 number, since 2×1400455143² = 3922549215110300898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400455123) 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, 699930 + ... + 701927.

It is an arithmetic number, because the mean of its divisors is an integer number (133176510).

Almost surely, 2^1400455143 is an apocalyptic number.

1400455143 is a deficient number, since it is larger than the sum of its proper divisors (730369017).

1400455143 is a wasteful number, since it uses less digits than its factorization.

1400455143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401903 (or 1401897 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1400455143 is about 37422.6554776649. The cubic root of 1400455143 is about 1118.8101583372.

Adding to 1400455143 its reverse (3415540041), we get a palindrome (4815995184).

The spelling of 1400455143 in words is "one billion, four hundred million, four hundred fifty-five thousand, one hundred forty-three".