151638842 has 8 divisors (see below), whose sum is σ = 230198976. Its totient is φ = 74905852.

The previous prime is 151638833. The next prime is 151638857. The reversal of 151638842 is 248836151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 151638796 and 151638805.

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, 456578 + ... + 456909.

It is an arithmetic number, because the mean of its divisors is an integer number (28774872).

Almost surely, 2^151638842 is an apocalyptic number.

151638842 is a deficient number, since it is larger than the sum of its proper divisors (78560134).

151638842 is an equidigital number, since it uses as much as digits as its factorization.

151638842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913572.

The product of its digits is 46080, while the sum is 38.

The square root of 151638842 is about 12314.1724041853. The cubic root of 151638842 is about 533.2573126889.

The spelling of 151638842 in words is "one hundred fifty-one million, six hundred thirty-eight thousand, eight hundred forty-two".