126973378 has 16 divisors (see below), whose sum is σ = 217869120. Its totient is φ = 54367056.

The previous prime is 126973373. The next prime is 126973393. The reversal of 126973378 is 873379621.

It is a happy number.

It is a super-3 number, since 3×126973378³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (126973373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14428 + ... + 21496.

It is an arithmetic number, because the mean of its divisors is an integer number (13616820).

Almost surely, 2^126973378 is an apocalyptic number.

126973378 is a deficient number, since it is larger than the sum of its proper divisors (90895742).

126973378 is a wasteful number, since it uses less digits than its factorization.

126973378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8361.

The product of its digits is 381024, while the sum is 46.

The square root of 126973378 is about 11268.2464474292. The cubic root of 126973378 is about 502.6174447234.

It can be divided in two parts, 1269 and 73378, that added together give a palindrome (74647).

The spelling of 126973378 in words is "one hundred twenty-six million, nine hundred seventy-three thousand, three hundred seventy-eight".