1401002243 has 8 divisors (see below), whose sum is σ = 1465302048. Its totient is φ = 1336984704.

The previous prime is 1401002201. The next prime is 1401002261. The reversal of 1401002243 is 3422001041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1401002243 - 2¹⁰ = 1401001219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401002263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60380 + ... + 80297.

It is an arithmetic number, because the mean of its divisors is an integer number (183162756).

Almost surely, 2^1401002243 is an apocalyptic number.

1401002243 is a deficient number, since it is larger than the sum of its proper divisors (64299805).

1401002243 is a wasteful number, since it uses less digits than its factorization.

1401002243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141133.

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

The square root of 1401002243 is about 37429.9645070631. The cubic root of 1401002243 is about 1118.9558303474.

Adding to 1401002243 its reverse (3422001041), we get a palindrome (4823003284).

The spelling of 1401002243 in words is "one billion, four hundred one million, two thousand, two hundred forty-three".