61612141 has 8 divisors (see below), whose sum is σ = 63862040. Its totient is φ = 59393088.

The previous prime is 61612139. The next prime is 61612151. The reversal of 61612141 is 14121616.

It can be written as a sum of positive squares in 4 ways, for example, as 12752041 + 48860100 = 3571^2 + 6990^2 .

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 61612141 - 2¹ = 61612139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61612151) 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, 3606 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (7982755).

Almost surely, 2^61612141 is an apocalyptic number.

It is an amenable number.

61612141 is a deficient number, since it is larger than the sum of its proper divisors (2249899).

61612141 is a wasteful number, since it uses less digits than its factorization.

61612141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15423.

The product of its digits is 288, while the sum is 22.

The square root of 61612141 is about 7849.3401633513. The cubic root of 61612141 is about 394.9621092747.

Adding to 61612141 its reverse (14121616), we get a palindrome (75733757).

The spelling of 61612141 in words is "sixty-one million, six hundred twelve thousand, one hundred forty-one".