1401004013 has 2 divisors, whose sum is σ = 1401004014. Its totient is φ = 1401004012.

The previous prime is 1401004009. The next prime is 1401004057. The reversal of 1401004013 is 3104001041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1023168169 + 377835844 = 31987^2 + 19438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401004013 - 2² = 1401004009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401004063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700502006 + 700502007.

It is an arithmetic number, because the mean of its divisors is an integer number (700502007).

Almost surely, 2^1401004013 is an apocalyptic number.

It is an amenable number.

1401004013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401004013 is an equidigital number, since it uses as much as digits as its factorization.

1401004013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1401004013 is about 37429.9881512137. The cubic root of 1401004013 is about 1118.9563015698.

Adding to 1401004013 its reverse (3104001041), we get a palindrome (4505005054).

The spelling of 1401004013 in words is "one billion, four hundred one million, four thousand, thirteen".