126404375 has 20 divisors (see below), whose sum is σ = 158761680. Its totient is φ = 100608000.

The previous prime is 126404371. The next prime is 126404387. The reversal of 126404375 is 573404621.

It is not a de Polignac number, because 126404375 - 2² = 126404371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126404371) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 163991 + ... + 164759.

It is an arithmetic number, because the mean of its divisors is an integer number (7938084).

Almost surely, 2^126404375 is an apocalyptic number.

126404375 is a deficient number, since it is larger than the sum of its proper divisors (32357305).

126404375 is an frugal number, since it uses more digits than its factorization.

126404375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 126404375 is about 11242.9700257539. The cubic root of 126404375 is about 501.8655309321.

Adding to 126404375 its reverse (573404621), we get a palindrome (699808996).

The spelling of 126404375 in words is "one hundred twenty-six million, four hundred four thousand, three hundred seventy-five".