126155500 has 48 divisors (see below), whose sum is σ = 277175808. Its totient is φ = 50160000.

The previous prime is 126155479. The next prime is 126155501. The reversal of 126155500 is 5551621.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (126155501) 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, 94840 + ... + 96160.

It is an arithmetic number, because the mean of its divisors is an integer number (5774496).

Almost surely, 2^126155500 is an apocalyptic number.

126155500 is a gapful number since it is divisible by the number (10) 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 126155500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138587904).

126155500 is an abundant number, since it is smaller than the sum of its proper divisors (151020308).

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

126155500 is a wasteful number, since it uses less digits than its factorization.

126155500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 126155500 is about 11231.8965451076. The cubic root of 126155500 is about 501.5359435899.

The spelling of 126155500 in words is "one hundred twenty-six million, one hundred fifty-five thousand, five hundred".