1401503213 has 32 divisors (see below), whose sum is σ = 1686528000. Its totient is φ = 1150269120.

The previous prime is 1401503197. The next prime is 1401503219. The reversal of 1401503213 is 3123051041.

It is not a de Polignac number, because 1401503213 - 2⁴ = 1401503197 is a prime.

It is a super-2 number, since 2×1401503213² = 3928422512098646738, 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 (1401503219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477356 + ... + 480282.

It is an arithmetic number, because the mean of its divisors is an integer number (52704000).

Almost surely, 2^1401503213 is an apocalyptic number.

It is an amenable number.

1401503213 is a deficient number, since it is larger than the sum of its proper divisors (285024787).

1401503213 is a wasteful number, since it uses less digits than its factorization.

1401503213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1401503213 is about 37436.6560071810. The cubic root of 1401503213 is about 1119.0891864270.

Adding to 1401503213 its reverse (3123051041), we get a palindrome (4524554254).

The spelling of 1401503213 in words is "one billion, four hundred one million, five hundred three thousand, two hundred thirteen".