126534861 has 6 divisors (see below), whose sum is σ = 182772590. Its totient is φ = 84356568.

The previous prime is 126534833. The next prime is 126534869. The reversal of 126534861 is 168435621.

It is a happy number.

126534861 is a `hidden beast` number, since 126 + 53 + 486 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 86769225 + 39765636 = 9315^2 + 6306^2 .

It is not a de Polignac number, because 126534861 - 2¹³ = 126526669 is a prime.

It is a super-2 number, since 2×126534861² = 32022142096578642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126534869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7029706 + ... + 7029723.

Almost surely, 2^126534861 is an apocalyptic number.

It is an amenable number.

126534861 is a deficient number, since it is larger than the sum of its proper divisors (56237729).

126534861 is a wasteful number, since it uses less digits than its factorization.

126534861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14059435 (or 14059432 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 126534861 is about 11248.7715329275. The cubic root of 126534861 is about 502.0381618370.

The spelling of 126534861 in words is "one hundred twenty-six million, five hundred thirty-four thousand, eight hundred sixty-one".