126605745 has 48 divisors (see below), whose sum is σ = 256943232. Its totient is φ = 56459520.

The previous prime is 126605737. The next prime is 126605761. The reversal of 126605745 is 547506621.

It is a happy number.

126605745 is a `hidden beast` number, since 1 + 2 + 6 + 605 + 7 + 45 = 666.

It is not a de Polignac number, because 126605745 - 2³ = 126605737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8014 + ... + 17816.

It is an arithmetic number, because the mean of its divisors is an integer number (5352984).

Almost surely, 2^126605745 is an apocalyptic number.

126605745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126605745 is an abundant number, since it is smaller than the sum of its proper divisors (130337487).

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

126605745 is a wasteful number, since it uses less digits than its factorization.

126605745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862 (or 9859 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 126605745 is about 11251.9218358465. The cubic root of 126605745 is about 502.1318905000.

The spelling of 126605745 in words is "one hundred twenty-six million, six hundred five thousand, seven hundred forty-five".