126541547 has 4 divisors (see below), whose sum is σ = 138045336. Its totient is φ = 115037760.

The previous prime is 126541543. The next prime is 126541559. The reversal of 126541547 is 745145621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745145621 = 11 ⋅67740511.

It is a cyclic number.

It is not a de Polignac number, because 126541547 - 2² = 126541543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126541543) 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, 5751878 + ... + 5751899.

It is an arithmetic number, because the mean of its divisors is an integer number (34511334).

Almost surely, 2^126541547 is an apocalyptic number.

126541547 is a deficient number, since it is larger than the sum of its proper divisors (11503789).

126541547 is a wasteful number, since it uses less digits than its factorization.

126541547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11503788.

The product of its digits is 33600, while the sum is 35.

The square root of 126541547 is about 11249.0687170094. The cubic root of 126541547 is about 502.0470041118.

The spelling of 126541547 in words is "one hundred twenty-six million, five hundred forty-one thousand, five hundred forty-seven".