1401021133 has 8 divisors (see below), whose sum is σ = 1432776600. Its totient is φ = 1369462848.

The previous prime is 1401021131. The next prime is 1401021137. The reversal of 1401021133 is 3311201041.

It can be written as a sum of positive squares in 4 ways, for example, as 16957924 + 1384063209 = 4118^2 + 37203^2 .

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 1401021133 - 2¹ = 1401021131 is a prime.

It is a super-2 number, since 2×1401021133² = 3925720430225207378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401021131) 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, 34878 + ... + 63391.

It is an arithmetic number, because the mean of its divisors is an integer number (179097075).

Almost surely, 2^1401021133 is an apocalyptic number.

It is an amenable number.

1401021133 is a deficient number, since it is larger than the sum of its proper divisors (31755467).

1401021133 is an equidigital number, since it uses as much as digits as its factorization.

1401021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98591.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1401021133 is about 37430.2168441488. The cubic root of 1401021133 is about 1118.9608593616.

Adding to 1401021133 its reverse (3311201041), we get a palindrome (4712222174).

The spelling of 1401021133 in words is "one billion, four hundred one million, twenty-one thousand, one hundred thirty-three".