151181142 has 32 divisors (see below), whose sum is σ = 345945600. Its totient is φ = 43146048.

The previous prime is 151181137. The next prime is 151181159. The reversal of 151181142 is 241181151.

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 15 ways as a sum of consecutive naturals, for example, 54034 + ... + 56762.

It is an arithmetic number, because the mean of its divisors is an integer number (10810800).

Almost surely, 2^151181142 is an apocalyptic number.

151181142 is an abundant number, since it is smaller than the sum of its proper divisors (194764458).

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

151181142 is a wasteful number, since it uses less digits than its factorization.

151181142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060.

The product of its digits is 320, while the sum is 24.

The square root of 151181142 is about 12295.5740817580. The cubic root of 151181142 is about 532.7202518527.

Subtracting 151181142 from its reverse (241181151), we obtain a palindrome (90000009).

The spelling of 151181142 in words is "one hundred fifty-one million, one hundred eighty-one thousand, one hundred forty-two".