126697845 has 16 divisors (see below), whose sum is σ = 203208192. Its totient is φ = 67408320.

The previous prime is 126697841. The next prime is 126697847. The reversal of 126697845 is 548796621.

It is not a de Polignac number, because 126697845 - 2² = 126697841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126697794 and 126697803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126697841) 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, 3717 + ... + 16346.

It is an arithmetic number, because the mean of its divisors is an integer number (12700512).

Almost surely, 2^126697845 is an apocalyptic number.

126697845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126697845 is a deficient number, since it is larger than the sum of its proper divisors (76510347).

126697845 is a wasteful number, since it uses less digits than its factorization.

126697845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20492.

The product of its digits is 725760, while the sum is 48.

The square root of 126697845 is about 11256.0137260044. The cubic root of 126697845 is about 502.2536204620.

It can be divided in two parts, 126 and 697845, that added together give a triangular number (697971 = T₁₁₈₁).

The spelling of 126697845 in words is "one hundred twenty-six million, six hundred ninety-seven thousand, eight hundred forty-five".