125049100 has 72 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 44865600.

The previous prime is 125049097. The next prime is 125049103. The reversal of 125049100 is 1940521.

It is an interprime number because it is at equal distance from previous prime (125049097) and next prime (125049103).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (125049103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86181 + ... + 87619.

It is an arithmetic number, because the mean of its divisors is an integer number (4166400).

Almost surely, 2^125049100 is an apocalyptic number.

125049100 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 125049100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149990400).

125049100 is an abundant number, since it is smaller than the sum of its proper divisors (174931700).

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

125049100 is a wasteful number, since it uses less digits than its factorization.

125049100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 125049100 is about 11182.5354906658. The cubic root of 125049100 is about 500.0654580968.

Adding to 125049100 its reverse (1940521), we get a palindrome (126989621).

The spelling of 125049100 in words is "one hundred twenty-five million, forty-nine thousand, one hundred".