1401531001 has 8 divisors (see below), whose sum is σ = 1509940040. Its totient is φ = 1293207552.

The previous prime is 1401530951. The next prime is 1401531007. The reversal of 1401531001 is 1001351041.

It can be written as a sum of positive squares in 4 ways, for example, as 181845225 + 1219685776 = 13485^2 + 34924^2 .

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

It is not a de Polignac number, because 1401531001 - 2⁷ = 1401530873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401531007) 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, 14911 + ... + 55003.

It is an arithmetic number, because the mean of its divisors is an integer number (188742505).

Almost surely, 2^1401531001 is an apocalyptic number.

It is an amenable number.

1401531001 is a deficient number, since it is larger than the sum of its proper divisors (108409039).

1401531001 is a wasteful number, since it uses less digits than its factorization.

1401531001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42795.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1401531001 is about 37437.0271389169. The cubic root of 1401531001 is about 1119.0965825439.

Adding to 1401531001 its reverse (1001351041), we get a palindrome (2402882042).

The spelling of 1401531001 in words is "one billion, four hundred one million, five hundred thirty-one thousand, one".