126981735 has 48 divisors (see below), whose sum is σ = 219635712. Its totient is φ = 62525760.

The previous prime is 126981713. The next prime is 126981737. The reversal of 126981735 is 537189621.

It is not a de Polignac number, because 126981735 - 2⁶ = 126981671 is a prime.

It is a super-2 number, since 2×126981735² = 32248722047220450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126981737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 331354 + ... + 331736.

It is an arithmetic number, because the mean of its divisors is an integer number (4575744).

Almost surely, 2^126981735 is an apocalyptic number.

126981735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126981735 is a deficient number, since it is larger than the sum of its proper divisors (92653977).

126981735 is a wasteful number, since it uses less digits than its factorization.

126981735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 445 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 126981735 is about 11268.6172621134. The cubic root of 126981735 is about 502.6284713966.

The spelling of 126981735 in words is "one hundred twenty-six million, nine hundred eighty-one thousand, seven hundred thirty-five".