611042531 has 8 divisors (see below), whose sum is σ = 684608304. Its totient is φ = 540479520.

The previous prime is 611042507. The next prime is 611042533. The reversal of 611042531 is 135240116.

611042531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 611042531 - 2¹⁰ = 611041507 is a prime.

It is a super-2 number, since 2×611042531² = 746745949381771922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 611042497 and 611042506.

It is not an unprimeable number, because it can be changed into a prime (611042533) 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, 750260 + ... + 751073.

It is an arithmetic number, because the mean of its divisors is an integer number (85576038).

Almost surely, 2^611042531 is an apocalyptic number.

611042531 is a deficient number, since it is larger than the sum of its proper divisors (73565773).

611042531 is a wasteful number, since it uses less digits than its factorization.

611042531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501381.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 611042531 is about 24719.2744836898. The cubic root of 611042531 is about 848.5754829556.

Adding to 611042531 its reverse (135240116), we get a palindrome (746282647).

The spelling of 611042531 in words is "six hundred eleven million, forty-two thousand, five hundred thirty-one".