61196151 has 4 divisors (see below), whose sum is σ = 81594872. Its totient is φ = 40797432.

The previous prime is 61196143. The next prime is 61196153. The reversal of 61196151 is 15169116.

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

It is not a de Polignac number, because 61196151 - 2³ = 61196143 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 (61196153) 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, 10199356 + ... + 10199361.

It is an arithmetic number, because the mean of its divisors is an integer number (20398718).

Almost surely, 2^61196151 is an apocalyptic number.

61196151 is a deficient number, since it is larger than the sum of its proper divisors (20398721).

61196151 is a wasteful number, since it uses less digits than its factorization.

61196151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20398720.

The product of its digits is 1620, while the sum is 30.

The square root of 61196151 is about 7822.7968783550. The cubic root of 61196151 is about 394.0712055765.

The spelling of 61196151 in words is "sixty-one million, one hundred ninety-six thousand, one hundred fifty-one".