151320140442 has 80 divisors (see below), whose sum is σ = 358233955200. Its totient is φ = 47608715520.

The previous prime is 151320140441. The next prime is 151320140473. The reversal of 151320140442 is 244041023151.

151320140442 is a `hidden beast` number, since 1 + 5 + 13 + 201 + 4 + 0 + 442 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (151320140441) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 743434 + ... + 924842.

It is an arithmetic number, because the mean of its divisors is an integer number (4477924440).

Almost surely, 2^151320140442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151320140442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179116977600).

151320140442 is an abundant number, since it is smaller than the sum of its proper divisors (206913814758).

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

151320140442 is a wasteful number, since it uses less digits than its factorization.

151320140442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181713 (or 181704 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 151320140442 its reverse (244041023151), we get a palindrome (395361163593).

The spelling of 151320140442 in words is "one hundred fifty-one billion, three hundred twenty million, one hundred forty thousand, four hundred forty-two".