1611244461 has 8 divisors (see below), whose sum is σ = 2241731520. Its totient is φ = 1027460192.

The previous prime is 1611244433. The next prime is 1611244469. The reversal of 1611244461 is 1644421161.

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 1611244461 - 2¹³ = 1611236269 is a prime.

It is a super-2 number, since 2×1611244461² = 5192217426206361042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611244469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11675616 + ... + 11675753.

It is an arithmetic number, because the mean of its divisors is an integer number (280216440).

Almost surely, 2^1611244461 is an apocalyptic number.

It is an amenable number.

1611244461 is a deficient number, since it is larger than the sum of its proper divisors (630487059).

1611244461 is a wasteful number, since it uses less digits than its factorization.

1611244461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23351395.

The product of its digits is 4608, while the sum is 30.

The square root of 1611244461 is about 40140.3096774302. The cubic root of 1611244461 is about 1172.3406186614.

The spelling of 1611244461 in words is "one billion, six hundred eleven million, two hundred forty-four thousand, four hundred sixty-one".