1401434213 has 6 divisors (see below), whose sum is σ = 1407686886. Its totient is φ = 1395209192.

The previous prime is 1401434189. The next prime is 1401434227. The reversal of 1401434213 is 3124341041.

It can be written as a sum of positive squares in only one way, i.e., 1222061764 + 179372449 = 34958^2 + 13393^2 .

It is not a de Polignac number, because 1401434213 - 2⁶ = 1401434149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401434233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37931 + ... + 65127.

It is an arithmetic number, because the mean of its divisors is an integer number (234614481).

Almost surely, 2^1401434213 is an apocalyptic number.

It is an amenable number.

1401434213 is a deficient number, since it is larger than the sum of its proper divisors (6252673).

1401434213 is an frugal number, since it uses more digits than its factorization.

1401434213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27651 (or 27424 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1401434213 is about 37435.7344391692. The cubic root of 1401434213 is about 1119.0708208083.

Adding to 1401434213 its reverse (3124341041), we get a palindrome (4525775254).

The spelling of 1401434213 in words is "one billion, four hundred one million, four hundred thirty-four thousand, two hundred thirteen".