61005151 has 4 divisors (see below), whose sum is σ = 61840912. Its totient is φ = 60169392.

The previous prime is 61005137. The next prime is 61005211. The reversal of 61005151 is 15150016.

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 61005151 - 2¹³ = 60996959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417771 + ... + 417916.

It is an arithmetic number, because the mean of its divisors is an integer number (15460228).

Almost surely, 2^61005151 is an apocalyptic number.

61005151 is a deficient number, since it is larger than the sum of its proper divisors (835761).

61005151 is an equidigital number, since it uses as much as digits as its factorization.

61005151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835760.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 61005151 is about 7810.5794279298. The cubic root of 61005151 is about 393.6607982699.

Adding to 61005151 its reverse (15150016), we get a palindrome (76155167).

The spelling of 61005151 in words is "sixty-one million, five thousand, one hundred fifty-one".