530811381 has 8 divisors (see below), whose sum is σ = 708439104. Its totient is φ = 353528960.

The previous prime is 530811371. The next prime is 530811401. The reversal of 530811381 is 183118035.

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

It is a cyclic number.

It is not a de Polignac number, because 530811381 - 2⁶ = 530811317 is a prime.

It is a super-2 number, since 2×530811381² = 563521444398254322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530811371) 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, 82716 + ... + 88901.

It is an arithmetic number, because the mean of its divisors is an integer number (88554888).

Almost surely, 2^530811381 is an apocalyptic number.

It is an amenable number.

530811381 is a deficient number, since it is larger than the sum of its proper divisors (177627723).

530811381 is a wasteful number, since it uses less digits than its factorization.

530811381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172651.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 530811381 is about 23039.3441963959. The cubic root of 530811381 is about 809.6799940006.

The spelling of 530811381 in words is "five hundred thirty million, eight hundred eleven thousand, three hundred eighty-one".