1401513823 has 2 divisors, whose sum is σ = 1401513824. Its totient is φ = 1401513822.

The previous prime is 1401513797. The next prime is 1401513863. The reversal of 1401513823 is 3283151041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401513823 - 2²⁵ = 1367959391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401513791 and 1401513800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401513863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700756911 + 700756912.

It is an arithmetic number, because the mean of its divisors is an integer number (700756912).

Almost surely, 2^1401513823 is an apocalyptic number.

1401513823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401513823 is an equidigital number, since it uses as much as digits as its factorization.

1401513823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1401513823 is about 37436.7977129455. The cubic root of 1401513823 is about 1119.0920104202.

Adding to 1401513823 its reverse (3283151041), we get a palindrome (4684664864).

The spelling of 1401513823 in words is "one billion, four hundred one million, five hundred thirteen thousand, eight hundred twenty-three".