151391738 has 8 divisors (see below), whose sum is σ = 230286240. Its totient is φ = 74629660.

The previous prime is 151391719. The next prime is 151391741. The reversal of 151391738 is 837193151.

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

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, 532928 + ... + 533211.

It is an arithmetic number, because the mean of its divisors is an integer number (28785780).

Almost surely, 2^151391738 is an apocalyptic number.

151391738 is a deficient number, since it is larger than the sum of its proper divisors (78894502).

151391738 is a wasteful number, since it uses less digits than its factorization.

151391738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066212.

The product of its digits is 22680, while the sum is 38.

The square root of 151391738 is about 12304.1349960085. The cubic root of 151391738 is about 532.9674976396.

The spelling of 151391738 in words is "one hundred fifty-one million, three hundred ninety-one thousand, seven hundred thirty-eight".