1401456543 has 4 divisors (see below), whose sum is σ = 1868608728. Its totient is φ = 934304360.

The previous prime is 1401456541. The next prime is 1401456571. The reversal of 1401456543 is 3456541041.

1401456543 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1401456543 - 2¹ = 1401456541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401456541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233576088 + ... + 233576093.

It is an arithmetic number, because the mean of its divisors is an integer number (467152182).

Almost surely, 2^1401456543 is an apocalyptic number.

1401456543 is a deficient number, since it is larger than the sum of its proper divisors (467152185).

1401456543 is an equidigital number, since it uses as much as digits as its factorization.

1401456543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467152184.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1401456543 is about 37436.0326824304. The cubic root of 1401456543 is about 1119.0767644143.

Adding to 1401456543 its reverse (3456541041), we get a palindrome (4857997584).

The spelling of 1401456543 in words is "one billion, four hundred one million, four hundred fifty-six thousand, five hundred forty-three".