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120131477 is a prime number
BaseRepresentation
bin1110010100100…
…00111110010101
322101001022101222
413022100332111
5221223201402
615530500125
72656046354
oct712207625
9271038358
10120131477
11618a1614
1234294645
131bb71a1b
1411d5199b
15a82e7a2
hex7290f95

120131477 has 2 divisors, whose sum is σ = 120131478. Its totient is φ = 120131476.

The previous prime is 120131467. The next prime is 120131491. The reversal of 120131477 is 774131021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119552356 + 579121 = 10934^2 + 761^2 .

It is a cyclic number.

It is not a de Polignac number, because 120131477 - 26 = 120131413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120131467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065738 + 60065739.

It is an arithmetic number, because the mean of its divisors is an integer number (60065739).

Almost surely, 2120131477 is an apocalyptic number.

It is an amenable number.

120131477 is a deficient number, since it is larger than the sum of its proper divisors (1).

120131477 is an equidigital number, since it uses as much as digits as its factorization.

120131477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 120131477 is about 10960.4505838036. The cubic root of 120131477 is about 493.4224880974.

Adding to 120131477 its reverse (774131021), we get a palindrome (894262498).

The spelling of 120131477 in words is "one hundred twenty million, one hundred thirty-one thousand, four hundred seventy-seven".