61145411 has 4 divisors (see below), whose sum is σ = 62299152. Its totient is φ = 59991672.

The previous prime is 61145407. The next prime is 61145419. The reversal of 61145411 is 11454116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61145411 - 2² = 61145407 is a prime.

It is a super-2 number, since 2×61145411² = 7477522572717842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61145419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576791 + ... + 576896.

It is an arithmetic number, because the mean of its divisors is an integer number (15574788).

Almost surely, 2^61145411 is an apocalyptic number.

61145411 is a deficient number, since it is larger than the sum of its proper divisors (1153741).

61145411 is a wasteful number, since it uses less digits than its factorization.

61145411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153740.

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

The square root of 61145411 is about 7819.5531202237. The cubic root of 61145411 is about 393.9622624407.

Adding to 61145411 its reverse (11454116), we get a palindrome (72599527).

The spelling of 61145411 in words is "sixty-one million, one hundred forty-five thousand, four hundred eleven".