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61595197 is a prime number
BaseRepresentation
bin1110101011110…
…1111000111101
311021220100201121
43222331320331
5111232021242
610040110541
71345356556
oct352757075
9137810647
1061595197
1131850424
1218765451
13c9b8081
14827532d
15561a667
hex3abde3d

61595197 has 2 divisors, whose sum is σ = 61595198. Its totient is φ = 61595196.

The previous prime is 61595147. The next prime is 61595227. The reversal of 61595197 is 79159516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49857721 + 11737476 = 7061^2 + 3426^2 .

It is a cyclic number.

It is not a de Polignac number, because 61595197 - 27 = 61595069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61595117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30797598 + 30797599.

It is an arithmetic number, because the mean of its divisors is an integer number (30797599).

Almost surely, 261595197 is an apocalyptic number.

It is an amenable number.

61595197 is a deficient number, since it is larger than the sum of its proper divisors (1).

61595197 is an equidigital number, since it uses as much as digits as its factorization.

61595197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 43.

The square root of 61595197 is about 7848.2607627423. The cubic root of 61595197 is about 394.9258996822.

The spelling of 61595197 in words is "sixty-one million, five hundred ninety-five thousand, one hundred ninety-seven".