126980740 has 12 divisors (see below), whose sum is σ = 266659596. Its totient is φ = 50792288.

The previous prime is 126980719. The next prime is 126980747. The reversal of 126980740 is 47089621.

It can be written as a sum of positive squares in 2 ways, for example, as 31449664 + 95531076 = 5608^2 + 9774^2 .

It is a super-2 number, since 2×126980740² = 32248216661895200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126980740.

It is not an unprimeable number, because it can be changed into a prime (126980747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3174499 + ... + 3174538.

It is an arithmetic number, because the mean of its divisors is an integer number (22221633).

Almost surely, 2^126980740 is an apocalyptic number.

126980740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126980740 is an abundant number, since it is smaller than the sum of its proper divisors (139678856).

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

126980740 is a wasteful number, since it uses less digits than its factorization.

126980740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349046 (or 6349044 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 126980740 is about 11268.5731128657. The cubic root of 126980740 is about 502.6271585657.

The spelling of 126980740 in words is "one hundred twenty-six million, nine hundred eighty thousand, seven hundred forty".