611501441 has 8 divisors (see below), whose sum is σ = 651052584. Its totient is φ = 572348160.

The previous prime is 611501417. The next prime is 611501461. The reversal of 611501441 is 144105116.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95257600 + 516243841 = 9760^2 + 22721^2 .

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 611501441 - 2¹⁴ = 611485057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611501461) 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, 96290 + ... + 102443.

It is an arithmetic number, because the mean of its divisors is an integer number (81381573).

Almost surely, 2^611501441 is an apocalyptic number.

It is an amenable number.

611501441 is a deficient number, since it is larger than the sum of its proper divisors (39551143).

611501441 is a wasteful number, since it uses less digits than its factorization.

611501441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198931.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 611501441 is about 24728.5551741302. Note that the first 3 decimals coincide. The cubic root of 611501441 is about 848.7878644225.

Adding to 611501441 its reverse (144105116), we get a palindrome (755606557).

The spelling of 611501441 in words is "six hundred eleven million, five hundred one thousand, four hundred forty-one".