126120285 has 12 divisors (see below), whose sum is σ = 218608572. Its totient is φ = 67264128.

The previous prime is 126120259. The next prime is 126120299. The reversal of 126120285 is 582021621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91757241 + 34363044 = 9579^2 + 5862^2 .

It is not a de Polignac number, because 126120285 - 2¹⁰ = 126119261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401292 + ... + 1401381.

It is an arithmetic number, because the mean of its divisors is an integer number (18217381).

Almost surely, 2^126120285 is an apocalyptic number.

126120285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126120285 is a deficient number, since it is larger than the sum of its proper divisors (92488287).

126120285 is a wasteful number, since it uses less digits than its factorization.

126120285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802684 (or 2802681 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 126120285 is about 11230.3288019541. The cubic root of 126120285 is about 501.4892730607.

The spelling of 126120285 in words is "one hundred twenty-six million, one hundred twenty thousand, two hundred eighty-five".