1401321513 has 8 divisors (see below), whose sum is σ = 1892080000. Its totient is φ = 922388688.

The previous prime is 1401321511. The next prime is 1401321547. The reversal of 1401321513 is 3151231041.

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

It is not a de Polignac number, because 1401321513 - 2¹ = 1401321511 is a prime.

It is a super-3 number, since 3×1401321513³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401321513.

It is not an unprimeable number, because it can be changed into a prime (1401321511) 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, 2956138 + ... + 2956611.

It is an arithmetic number, because the mean of its divisors is an integer number (236510000).

Almost surely, 2^1401321513 is an apocalyptic number.

It is an amenable number.

1401321513 is a deficient number, since it is larger than the sum of its proper divisors (490758487).

1401321513 is an equidigital number, since it uses as much as digits as its factorization.

1401321513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912831.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1401321513 is about 37434.2291626260. The cubic root of 1401321513 is about 1119.0408223345.

Adding to 1401321513 its reverse (3151231041), we get a palindrome (4552552554).

The spelling of 1401321513 in words is "one billion, four hundred one million, three hundred twenty-one thousand, five hundred thirteen".