1401550143 has 16 divisors (see below), whose sum is σ = 2248101120. Its totient is φ = 758733696.

The previous prime is 1401550123. The next prime is 1401550243. The reversal of 1401550143 is 3410551041.

It is a happy number.

It is not a de Polignac number, because 1401550143 - 2⁹ = 1401549631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401550123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1755930 + ... + 1756727.

It is an arithmetic number, because the mean of its divisors is an integer number (140506320).

Almost surely, 2^1401550143 is an apocalyptic number.

1401550143 is a deficient number, since it is larger than the sum of its proper divisors (846550977).

1401550143 is a wasteful number, since it uses less digits than its factorization.

1401550143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512686.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1401550143 is about 37437.2827940277. The cubic root of 1401550143 is about 1119.1016773651.

The spelling of 1401550143 in words is "one billion, four hundred one million, five hundred fifty thousand, one hundred forty-three".