531900029 has 4 divisors (see below), whose sum is σ = 563188284. Its totient is φ = 500611776.

The previous prime is 531900023. The next prime is 531900151. The reversal of 531900029 is 920009135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920009135 = 5 ⋅184001827.

It can be written as a sum of positive squares in 2 ways, for example, as 428572804 + 103327225 = 20702^2 + 10165^2 .

It is a cyclic number.

It is not a de Polignac number, because 531900029 - 2⁴ = 531900013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531899974 and 531900010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531900023) 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, 15644102 + ... + 15644135.

It is an arithmetic number, because the mean of its divisors is an integer number (140797071).

Almost surely, 2^531900029 is an apocalyptic number.

It is an amenable number.

531900029 is a deficient number, since it is larger than the sum of its proper divisors (31288255).

531900029 is a wasteful number, since it uses less digits than its factorization.

531900029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31288254.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 531900029 is about 23062.9579412529. The cubic root of 531900029 is about 810.2331437800.

The spelling of 531900029 in words is "five hundred thirty-one million, nine hundred thousand, twenty-nine".