531915401 has 2 divisors, whose sum is σ = 531915402. Its totient is φ = 531915400.

The previous prime is 531915359. The next prime is 531915443. The reversal of 531915401 is 104519135.

It is a balanced prime because it is at equal distance from previous prime (531915359) and next prime (531915443).

It can be written as a sum of positive squares in only one way, i.e., 510534025 + 21381376 = 22595^2 + 4624^2 .

It is a cyclic number.

It is not a de Polignac number, because 531915401 - 2⁶ = 531915337 is a prime.

It is not a weakly prime, because it can be changed into another prime (531915451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265957700 + 265957701.

It is an arithmetic number, because the mean of its divisors is an integer number (265957701).

Almost surely, 2^531915401 is an apocalyptic number.

It is an amenable number.

531915401 is a deficient number, since it is larger than the sum of its proper divisors (1).

531915401 is an equidigital number, since it uses as much as digits as its factorization.

531915401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 531915401 is about 23063.2912005204. The cubic root of 531915401 is about 810.2409489960.

The spelling of 531915401 in words is "five hundred thirty-one million, nine hundred fifteen thousand, four hundred one".