531401153 has 4 divisors (see below), whose sum is σ = 531733440. Its totient is φ = 531068868.

The previous prime is 531401119. The next prime is 531401173. The reversal of 531401153 is 351104135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 531401153 - 2⁸ = 531400897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531401173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163733 + ... + 166946.

It is an arithmetic number, because the mean of its divisors is an integer number (132933360).

Almost surely, 2^531401153 is an apocalyptic number.

It is an amenable number.

531401153 is a deficient number, since it is larger than the sum of its proper divisors (332287).

531401153 is a wasteful number, since it uses less digits than its factorization.

531401153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332286.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 531401153 is about 23052.1398789787. The cubic root of 531401153 is about 809.9797551207.

Adding to 531401153 its reverse (351104135), we get a palindrome (882505288).

The spelling of 531401153 in words is "five hundred thirty-one million, four hundred one thousand, one hundred fifty-three".