151215678 has 24 divisors (see below), whose sum is σ = 333817848. Its totient is φ = 49453872.

The previous prime is 151215671. The next prime is 151215679. The reversal of 151215678 is 876512151.

151215678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151215671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78300 + ... + 80207.

It is an arithmetic number, because the mean of its divisors is an integer number (13909077).

Almost surely, 2^151215678 is an apocalyptic number.

151215678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

151215678 is an abundant number, since it is smaller than the sum of its proper divisors (182602170).

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

151215678 is a wasteful number, since it uses less digits than its factorization.

151215678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158568 (or 158565 counting only the distinct ones).

The product of its digits is 16800, while the sum is 36.

The square root of 151215678 is about 12296.9784093492. The cubic root of 151215678 is about 532.7608138469.

The spelling of 151215678 in words is "one hundred fifty-one million, two hundred fifteen thousand, six hundred seventy-eight".