915400147 has 4 divisors (see below), whose sum is σ = 944929216. Its totient is φ = 885871080.

The previous prime is 915400133. The next prime is 915400151. The reversal of 915400147 is 741004519.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741004519 = 10687 ⋅69337.

It is a cyclic number.

It is not a de Polignac number, because 915400147 - 2¹⁵ = 915367379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 29529037 = 915400147 / (9 + 1 + 5 + 4 + 0 + 0 + 1 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (915407147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14764488 + ... + 14764549.

It is an arithmetic number, because the mean of its divisors is an integer number (236232304).

Almost surely, 2^915400147 is an apocalyptic number.

915400147 is a deficient number, since it is larger than the sum of its proper divisors (29529069).

915400147 is a wasteful number, since it uses less digits than its factorization.

915400147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29529068.

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

The square root of 915400147 is about 30255.5804274187. The cubic root of 915400147 is about 970.9651876509.

The spelling of 915400147 in words is "nine hundred fifteen million, four hundred thousand, one hundred forty-seven".