126881547 has 32 divisors (see below), whose sum is σ = 195299328. Its totient is φ = 72648576.

The previous prime is 126881539. The next prime is 126881549. The reversal of 126881547 is 745188621.

It is not a de Polignac number, because 126881547 - 2³ = 126881539 is a prime.

It is a super-2 number, since 2×126881547² = 32197853938226418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126881499 and 126881508.

It is not an unprimeable number, because it can be changed into a prime (126881549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31278 + ... + 35100.

It is an arithmetic number, because the mean of its divisors is an integer number (6103104).

Almost surely, 2^126881547 is an apocalyptic number.

126881547 is a deficient number, since it is larger than the sum of its proper divisors (68417781).

126881547 is a wasteful number, since it uses less digits than its factorization.

126881547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899.

The product of its digits is 107520, while the sum is 42.

The square root of 126881547 is about 11264.1709415296. The cubic root of 126881547 is about 502.4962461045.

The spelling of 126881547 in words is "one hundred twenty-six million, eight hundred eighty-one thousand, five hundred forty-seven".