247422153 has 8 divisors (see below), whose sum is σ = 359886816. Its totient is φ = 149952800.

The previous prime is 247422139. The next prime is 247422157. The reversal of 247422153 is 351224742.

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

It is a cyclic number.

It is not a de Polignac number, because 247422153 - 2⁸ = 247421897 is a prime.

It is a super-2 number, since 2×247422153² = 122435443590310818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247422153.

It is not an unprimeable number, because it can be changed into a prime (247422157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3748788 + ... + 3748853.

It is an arithmetic number, because the mean of its divisors is an integer number (44985852).

Almost surely, 2^247422153 is an apocalyptic number.

It is an amenable number.

247422153 is a deficient number, since it is larger than the sum of its proper divisors (112464663).

247422153 is a wasteful number, since it uses less digits than its factorization.

247422153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497655.

The product of its digits is 13440, while the sum is 30.

The square root of 247422153 is about 15729.6583878990. The cubic root of 247422153 is about 627.7877839554.

Adding to 247422153 its reverse (351224742), we get a palindrome (598646895).

The spelling of 247422153 in words is "two hundred forty-seven million, four hundred twenty-two thousand, one hundred fifty-three".