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142205351 is a prime number
BaseRepresentation
bin10000111100111…
…10000110100111
3100220120210001212
420132132012213
5242401032401
622035542035
73344503601
oct1036360647
9326523055
10142205351
11732a8a92
123b75a91b
13236000a2
1414c5a171
15c73edbb
hex879e1a7

142205351 has 2 divisors, whose sum is σ = 142205352. Its totient is φ = 142205350.

The previous prime is 142205341. The next prime is 142205363. The reversal of 142205351 is 153502241.

It is a weak prime.

It is an emirp because it is prime and its reverse (153502241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142205351 - 222 = 138011047 is a 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 (142205341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71102675 + 71102676.

It is an arithmetic number, because the mean of its divisors is an integer number (71102676).

Almost surely, 2142205351 is an apocalyptic number.

142205351 is a deficient number, since it is larger than the sum of its proper divisors (1).

142205351 is an equidigital number, since it uses as much as digits as its factorization.

142205351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 142205351 is about 11924.9885115249. The cubic root of 142205351 is about 521.9617111515.

Adding to 142205351 its reverse (153502241), we get a palindrome (295707592).

The spelling of 142205351 in words is "one hundred forty-two million, two hundred five thousand, three hundred fifty-one".