401400305149 has 2 divisors, whose sum is σ = 401400305150. Its totient is φ = 401400305148.

The previous prime is 401400305107. The next prime is 401400305183. The reversal of 401400305149 is 941503004104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400996697049 + 403608100 = 633243^2 + 20090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401400305149 is a prime.

It is a super-2 number, since 2×401400305149² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401400305149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401400305249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200700152574 + 200700152575.

It is an arithmetic number, because the mean of its divisors is an integer number (200700152575).

Almost surely, 2^401400305149 is an apocalyptic number.

It is an amenable number.

401400305149 is a deficient number, since it is larger than the sum of its proper divisors (1).

401400305149 is an equidigital number, since it uses as much as digits as its factorization.

401400305149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 401400305149 in words is "four hundred one billion, four hundred million, three hundred five thousand, one hundred forty-nine".