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142107061 = 1916274597
BaseRepresentation
bin10000111100001…
…10000110110101
3100220101210020111
420132012012311
5242334411221
622033503021
73343614205
oct1036060665
9326353214
10142107061
1173241158
123b711a71
1323597425
1414c32405
15c720be1
hex87861b5

142107061 has 8 divisors (see below), whose sum is σ = 149710880. Its totient is φ = 134515728.

The previous prime is 142107059. The next prime is 142107073. The reversal of 142107061 is 160701241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142107061 - 21 = 142107059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142107001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28615 + ... + 33211.

It is an arithmetic number, because the mean of its divisors is an integer number (18713860).

Almost surely, 2142107061 is an apocalyptic number.

It is an amenable number.

142107061 is a deficient number, since it is larger than the sum of its proper divisors (7603819).

142107061 is a wasteful number, since it uses less digits than its factorization.

142107061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 142107061 is about 11920.8666211815. The cubic root of 142107061 is about 521.8414263173.

The spelling of 142107061 in words is "one hundred forty-two million, one hundred seven thousand, sixty-one".

Divisors: 1 19 1627 4597 30913 87343 7479319 142107061