125402030 has 64 divisors (see below), whose sum is σ = 259640640. Its totient is φ = 43198464.

The previous prime is 125402029. The next prime is 125402051. The reversal of 125402030 is 30204521.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395432 + ... + 395748.

It is an arithmetic number, because the mean of its divisors is an integer number (4056885).

Almost surely, 2^125402030 is an apocalyptic number.

125402030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125402030 is an abundant number, since it is smaller than the sum of its proper divisors (134238610).

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

125402030 is a wasteful number, since it uses less digits than its factorization.

125402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 125402030 is about 11198.3047824213. The cubic root of 125402030 is about 500.5354663469.

Adding to 125402030 its reverse (30204521), we get a palindrome (155606551).

The spelling of 125402030 in words is "one hundred twenty-five million, four hundred two thousand, thirty".