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1207219141 is a prime number
BaseRepresentation
bin100011111110100…
…1011001111000101
310010010121002100001
41013331023033011
54433022003031
6315442521301
741626123222
oct10775131705
93103532301
101207219141
1156a497677
12298366231
1316315136b
14b648c949
1570eb4861
hex47f4b3c5

1207219141 has 2 divisors, whose sum is σ = 1207219142. Its totient is φ = 1207219140.

The previous prime is 1207219133. The next prime is 1207219157. The reversal of 1207219141 is 1419127021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968516641 + 238702500 = 31121^2 + 15450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1207219141 - 23 = 1207219133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1207219241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603609570 + 603609571.

It is an arithmetic number, because the mean of its divisors is an integer number (603609571).

Almost surely, 21207219141 is an apocalyptic number.

It is an amenable number.

1207219141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1207219141 is an equidigital number, since it uses as much as digits as its factorization.

1207219141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1207219141 is about 34745.0592314936. The cubic root of 1207219141 is about 1064.7852773779.

It can be divided in two parts, 12072 and 19141, that added together give a palindrome (31213).

The spelling of 1207219141 in words is "one billion, two hundred seven million, two hundred nineteen thousand, one hundred forty-one".