2045151342 has 80 divisors (see below), whose sum is σ = 4945192560. Its totient is φ = 628000128.

The previous prime is 2045151307. The next prime is 2045151347. The reversal of 2045151342 is 2431515402.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045151347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2006509 + ... + 2007527.

It is an arithmetic number, because the mean of its divisors is an integer number (61814907).

Almost surely, 2^2045151342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045151342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2472596280).

2045151342 is an abundant number, since it is smaller than the sum of its proper divisors (2900041218).

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

2045151342 is a wasteful number, since it uses less digits than its factorization.

2045151342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2045151342 is about 45223.3495221219. The cubic root of 2045151342 is about 1269.3317711410.

Adding to 2045151342 its reverse (2431515402), we get a palindrome (4476666744).

The spelling of 2045151342 in words is "two billion, forty-five million, one hundred fifty-one thousand, three hundred forty-two".