540030531 has 8 divisors (see below), whose sum is σ = 720383760. Its totient is φ = 359848832.

The previous prime is 540030523. The next prime is 540030539. The reversal of 540030531 is 135030045.

It is an interprime number because it is at equal distance from previous prime (540030523) and next prime (540030539).

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 540030531 - 2³ = 540030523 is a prime.

It is a super-2 number, since 2×540030531² = 583265948824283922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 540030498 and 540030507.

It is not an unprimeable number, because it can be changed into a prime (540030539) 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, 35346 + ... + 48263.

It is an arithmetic number, because the mean of its divisors is an integer number (90047970).

Almost surely, 2^540030531 is an apocalyptic number.

540030531 is a deficient number, since it is larger than the sum of its proper divisors (180353229).

540030531 is a wasteful number, since it uses less digits than its factorization.

540030531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85765.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 540030531 is about 23238.5569904846. The cubic root of 540030531 is about 814.3406317048.

Adding to 540030531 its reverse (135030045), we get a palindrome (675060576).

The spelling of 540030531 in words is "five hundred forty million, thirty thousand, five hundred thirty-one".