1383954143 has 16 divisors (see below), whose sum is σ = 1640839200. Its totient is φ = 1150692480.

The previous prime is 1383954127. The next prime is 1383954161. The reversal of 1383954143 is 3414593831.

It is a cyclic number.

It is not a de Polignac number, because 1383954143 - 2⁴ = 1383954127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1383954143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383954743) 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, 28808 + ... + 59981.

It is an arithmetic number, because the mean of its divisors is an integer number (102552450).

Almost surely, 2^1383954143 is an apocalyptic number.

1383954143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1383954143 is a deficient number, since it is larger than the sum of its proper divisors (256885057).

1383954143 is a wasteful number, since it uses less digits than its factorization.

1383954143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88922.

The product of its digits is 155520, while the sum is 41.

The square root of 1383954143 is about 37201.5341484730. The cubic root of 1383954143 is about 1114.3986227977.

The spelling of 1383954143 in words is "one billion, three hundred eighty-three million, nine hundred fifty-four thousand, one hundred forty-three".