613021401 has 12 divisors (see below), whose sum is σ = 916009380. Its totient is φ = 394588320.

The previous prime is 613021399. The next prime is 613021417. The reversal of 613021401 is 104120316.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 379665225 + 233356176 = 19485^2 + 15276^2 .

It is not a de Polignac number, because 613021401 - 2¹ = 613021399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (613021421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1174110 + ... + 1174631.

It is an arithmetic number, because the mean of its divisors is an integer number (76334115).

Almost surely, 2^613021401 is an apocalyptic number.

It is an amenable number.

613021401 is a deficient number, since it is larger than the sum of its proper divisors (302987979).

613021401 is a wasteful number, since it uses less digits than its factorization.

613021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348776 (or 2348773 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 613021401 is about 24759.2689916322. The cubic root of 613021401 is about 849.4905371505.

Adding to 613021401 its reverse (104120316), we get a palindrome (717141717).

The spelling of 613021401 in words is "six hundred thirteen million, twenty-one thousand, four hundred one".