247150146 has 8 divisors (see below), whose sum is σ = 494300304. Its totient is φ = 82383380.

The previous prime is 247150051. The next prime is 247150153. The reversal of 247150146 is 641051742.

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

247150146 is an admirable number.

It is a super-2 number, since 2×247150146² = 122166389335642632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20595840 + ... + 20595851.

It is an arithmetic number, because the mean of its divisors is an integer number (61787538).

Almost surely, 2^247150146 is an apocalyptic number.

247150146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

247150146 is a wasteful number, since it uses less digits than its factorization.

247150146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41191696.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 247150146 is about 15721.0097003977. The cubic root of 247150146 is about 627.5576438424.

The spelling of 247150146 in words is "two hundred forty-seven million, one hundred fifty thousand, one hundred forty-six".