151321378 has 16 divisors (see below), whose sum is σ = 245528640. Its totient is φ = 69530256.

The previous prime is 151321349. The next prime is 151321381. The reversal of 151321378 is 873123151.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6918 + ... + 18721.

It is an arithmetic number, because the mean of its divisors is an integer number (15345540).

Almost surely, 2^151321378 is an apocalyptic number.

151321378 is a deficient number, since it is larger than the sum of its proper divisors (94207262).

151321378 is a wasteful number, since it uses less digits than its factorization.

151321378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25881.

The product of its digits is 5040, while the sum is 31.

The square root of 151321378 is about 12301.2754623250. The cubic root of 151321378 is about 532.8849184877.

The spelling of 151321378 in words is "one hundred fifty-one million, three hundred twenty-one thousand, three hundred seventy-eight".