151240142 has 4 divisors (see below), whose sum is σ = 226860216. Its totient is φ = 75620070.

The previous prime is 151240129. The next prime is 151240181. The reversal of 151240142 is 241042151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37810034 + ... + 37810037.

It is an arithmetic number, because the mean of its divisors is an integer number (56715054).

Almost surely, 2^151240142 is an apocalyptic number.

151240142 is a deficient number, since it is larger than the sum of its proper divisors (75620074).

151240142 is an equidigital number, since it uses as much as digits as its factorization.

151240142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75620073.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 151240142 is about 12297.9730850250. The cubic root of 151240142 is about 532.7895426973.

Adding to 151240142 its reverse (241042151), we get a palindrome (392282293).

The spelling of 151240142 in words is "one hundred fifty-one million, two hundred forty thousand, one hundred forty-two".