3155201240 has 16 divisors (see below), whose sum is σ = 7099202880. Its totient is φ = 1262080480.

The previous prime is 3155201219. The next prime is 3155201251. The reversal of 3155201240 is 421025513.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39439976 + ... + 39440055.

It is an arithmetic number, because the mean of its divisors is an integer number (443700180).

Almost surely, 2^3155201240 is an apocalyptic number.

It is an amenable number.

3155201240 is an abundant number, since it is smaller than the sum of its proper divisors (3944001640).

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

3155201240 is a wasteful number, since it uses less digits than its factorization.

3155201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78880042 (or 78880038 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 3155201240 is about 56171.1780186245. The cubic root of 3155201240 is about 1466.7035888318.

Adding to 3155201240 its reverse (421025513), we get a palindrome (3576226753).

The spelling of 3155201240 in words is "three billion, one hundred fifty-five million, two hundred one thousand, two hundred forty".