531438099 has 8 divisors (see below), whose sum is σ = 711706560. Its totient is φ = 352730856.

The previous prime is 531438041. The next prime is 531438107. The reversal of 531438099 is 990834135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531438099 - 2⁸ = 531437843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531438099.

It is not an unprimeable number, because it can be changed into a prime (531438199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389509 + ... + 390870.

It is an arithmetic number, because the mean of its divisors is an integer number (88963320).

Almost surely, 2^531438099 is an apocalyptic number.

531438099 is a deficient number, since it is larger than the sum of its proper divisors (180268461).

531438099 is a wasteful number, since it uses less digits than its factorization.

531438099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780609.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 531438099 is about 23052.9412223256. The cubic root of 531438099 is about 809.9985261366.

The spelling of 531438099 in words is "five hundred thirty-one million, four hundred thirty-eight thousand, ninety-nine".