401502193 has 2 divisors, whose sum is σ = 401502194. Its totient is φ = 401502192.

The previous prime is 401502181. The next prime is 401502251. The reversal of 401502193 is 391205104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271359729 + 130142464 = 16473^2 + 11408^2 .

It is a cyclic number.

It is not a de Polignac number, because 401502193 - 2²⁵ = 367947761 is a prime.

It is a super-2 number, since 2×401502193² = 322408021967618498, which contains 22 as substring.

It is equal to p_21411970 and since 401502193 and 21411970 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (401502103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200751096 + 200751097.

It is an arithmetic number, because the mean of its divisors is an integer number (200751097).

Almost surely, 2^401502193 is an apocalyptic number.

It is an amenable number.

401502193 is a deficient number, since it is larger than the sum of its proper divisors (1).

401502193 is an equidigital number, since it uses as much as digits as its factorization.

401502193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 401502193 is about 20037.5196319305. The cubic root of 401502193 is about 737.7275018906.

Adding to 401502193 its reverse (391205104), we get a palindrome (792707297).

The spelling of 401502193 in words is "four hundred one million, five hundred two thousand, one hundred ninety-three".