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149207 = 197853
BaseRepresentation
bin100100011011010111
321120200012
4210123113
514233312
63110435
71161002
oct443327
9246605
10149207
11a2113
127241b
1352bb6
143c539
152e322
hex246d7

149207 has 4 divisors (see below), whose sum is σ = 157080. Its totient is φ = 141336.

The previous prime is 149197. The next prime is 149213. The reversal of 149207 is 702941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702941 = 1096449.

It is a cyclic number.

It is not a de Polignac number, because 149207 - 26 = 149143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149207.

It is not an unprimeable number, because it can be changed into a prime (149257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3908 + ... + 3945.

It is an arithmetic number, because the mean of its divisors is an integer number (39270).

2149207 is an apocalyptic number.

149207 is a deficient number, since it is larger than the sum of its proper divisors (7873).

149207 is an equidigital number, since it uses as much as digits as its factorization.

149207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 149207 is about 386.2732193668. The cubic root of 149207 is about 53.0391309451.

The spelling of 149207 in words is "one hundred forty-nine thousand, two hundred seven".

Divisors: 1 19 7853 149207