401515630349 has 2 divisors, whose sum is σ = 401515630350. Its totient is φ = 401515630348.

The previous prime is 401515630339. The next prime is 401515630387. The reversal of 401515630349 is 943036515104.

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., 327993307849 + 73522322500 = 572707^2 + 271150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401515630349 is a prime.

It is a super-2 number, since 2×401515630349² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401515630319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200757815174 + 200757815175.

It is an arithmetic number, because the mean of its divisors is an integer number (200757815175).

Almost surely, 2^401515630349 is an apocalyptic number.

It is an amenable number.

401515630349 is a deficient number, since it is larger than the sum of its proper divisors (1).

401515630349 is an equidigital number, since it uses as much as digits as its factorization.

401515630349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 401515630349 in words is "four hundred one billion, five hundred fifteen million, six hundred thirty thousand, three hundred forty-nine".