126154986 has 8 divisors (see below), whose sum is σ = 252309984. Its totient is φ = 42051660.

The previous prime is 126154981. The next prime is 126154997. The reversal of 126154986 is 689451621.

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

126154986 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (126154981) 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, 10512910 + ... + 10512921.

It is an arithmetic number, because the mean of its divisors is an integer number (31538748).

Almost surely, 2^126154986 is an apocalyptic number.

126154986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126154986 is a wasteful number, since it uses less digits than its factorization.

126154986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21025836.

The product of its digits is 103680, while the sum is 42.

The square root of 126154986 is about 11231.8736638194. The cubic root of 126154986 is about 501.5352624469.

The spelling of 126154986 in words is "one hundred twenty-six million, one hundred fifty-four thousand, nine hundred eighty-six".