3155112400 has 120 divisors (see below), whose sum is σ = 8629072704. Its totient is φ = 1097395200.

The previous prime is 3155112361. The next prime is 3155112407. The reversal of 3155112400 is 42115513.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155112407) 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, 85612 + ... + 116788.

Almost surely, 2^3155112400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155112400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4314536352).

3155112400 is an abundant number, since it is smaller than the sum of its proper divisors (5473960304).

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

3155112400 is a wasteful number, since it uses less digits than its factorization.

3155112400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31229 (or 31218 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 3155112400 is about 56170.3872160412. The cubic root of 3155112400 is about 1466.6898228667.

Adding to 3155112400 its reverse (42115513), we get a palindrome (3197227913).

The spelling of 3155112400 in words is "three billion, one hundred fifty-five million, one hundred twelve thousand, four hundred".