126523964 has 48 divisors (see below), whose sum is σ = 269068800. Its totient is φ = 50849856.

The previous prime is 126523963. The next prime is 126523967. The reversal of 126523964 is 469325621.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126523961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53642 + ... + 55950.

It is an arithmetic number, because the mean of its divisors is an integer number (5605600).

Almost surely, 2^126523964 is an apocalyptic number.

126523964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126523964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134534400).

126523964 is an abundant number, since it is smaller than the sum of its proper divisors (142544836).

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

126523964 is a wasteful number, since it uses less digits than its factorization.

126523964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2440 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 126523964 is about 11248.2871584966. The cubic root of 126523964 is about 502.0237498221.

The spelling of 126523964 in words is "one hundred twenty-six million, five hundred twenty-three thousand, nine hundred sixty-four".