1401004043 has 4 divisors (see below), whose sum is σ = 1414606128. Its totient is φ = 1387401960.

The previous prime is 1401004013. The next prime is 1401004057. The reversal of 1401004043 is 3404001041.

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 1401004043 - 2¹⁶ = 1400938507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401004013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6800888 + ... + 6801093.

It is an arithmetic number, because the mean of its divisors is an integer number (353651532).

Almost surely, 2^1401004043 is an apocalyptic number.

1401004043 is a deficient number, since it is larger than the sum of its proper divisors (13602085).

1401004043 is a wasteful number, since it uses less digits than its factorization.

1401004043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13602084.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1401004043 is about 37429.9885519619. The cubic root of 1401004043 is about 1118.9563095566.

Adding to 1401004043 its reverse (3404001041), we get a palindrome (4805005084).

The spelling of 1401004043 in words is "one billion, four hundred one million, four thousand, forty-three".