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134887491 = 335394261
BaseRepresentation
bin10000000101000…
…11100001000011
3100101210222212000
420002203201003
5234012344431
621215035043
73225344664
oct1002434103
9311728760
10134887491
116a15aa72
123920ba83
1321c3a2ab
1413cb336b
15bc969e6
hex80a3843

134887491 has 16 divisors (see below), whose sum is σ = 203605920. Its totient is φ = 88227360.

The previous prime is 134887483. The next prime is 134887561. The reversal of 134887491 is 194788431.

It is a happy number.

134887491 is a `hidden beast` number, since 13 + 488 + 74 + 91 = 666.

It is not a de Polignac number, because 134887491 - 23 = 134887483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134887451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45700 + ... + 48561.

It is an arithmetic number, because the mean of its divisors is an integer number (12725370).

Almost surely, 2134887491 is an apocalyptic number.

134887491 is a deficient number, since it is larger than the sum of its proper divisors (68718429).

134887491 is an equidigital number, since it uses as much as digits as its factorization.

134887491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94323 (or 94317 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 134887491 is about 11614.1074129698. The cubic root of 134887491 is about 512.8502350002.

The spelling of 134887491 in words is "one hundred thirty-four million, eight hundred eighty-seven thousand, four hundred ninety-one".

Divisors: 1 3 9 27 53 159 477 1431 94261 282783 848349 2545047 4995833 14987499 44962497 134887491