61926191 has 2 divisors, whose sum is σ = 61926192. Its totient is φ = 61926190.

The previous prime is 61926181. The next prime is 61926199. The reversal of 61926191 is 19162916.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61926191 - 2¹⁴ = 61909807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61926199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30963095 + 30963096.

It is an arithmetic number, because the mean of its divisors is an integer number (30963096).

Almost surely, 2^61926191 is an apocalyptic number.

61926191 is a deficient number, since it is larger than the sum of its proper divisors (1).

61926191 is an equidigital number, since it uses as much as digits as its factorization.

61926191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 35.

The square root of 61926191 is about 7869.3196021003. The cubic root of 61926191 is about 395.6320405264.

The spelling of 61926191 in words is "sixty-one million, nine hundred twenty-six thousand, one hundred ninety-one".