3125423100 has 144 divisors (see below), whose sum is σ = 9449395200. Its totient is φ = 796646400.

The previous prime is 3125423009. The next prime is 3125423179. The reversal of 3125423100 is 13245213.

It is a super-2 number, since 2×3125423100² = 19536539108027220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 769876 + ... + 773924.

It is an arithmetic number, because the mean of its divisors is an integer number (65620800).

Almost surely, 2^3125423100 is an apocalyptic number.

3125423100 is a gapful number since it is divisible by the number (30) 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 3125423100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4724697600).

3125423100 is an abundant number, since it is smaller than the sum of its proper divisors (6323972100).

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

3125423100 is a wasteful number, since it uses less digits than its factorization.

3125423100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180 (or 4173 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3125423100 is about 55905.4836308568. The cubic root of 3125423100 is about 1462.0748475638.

Adding to 3125423100 its reverse (13245213), we get a palindrome (3138668313).

The spelling of 3125423100 in words is "three billion, one hundred twenty-five million, four hundred twenty-three thousand, one hundred".