248247129 has 8 divisors (see below), whose sum is σ = 356457472. Its totient is φ = 152767440.

The previous prime is 248247113. The next prime is 248247137. The reversal of 248247129 is 921742842.

It is a happy number.

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

It is not a de Polignac number, because 248247129 - 2⁴ = 248247113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 6365311 = 248247129 / (2 + 4 + 8 + 2 + 4 + 7 + 1 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248247199) 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, 3182617 + ... + 3182694.

It is an arithmetic number, because the mean of its divisors is an integer number (44557184).

Almost surely, 2^248247129 is an apocalyptic number.

It is an amenable number.

248247129 is a deficient number, since it is larger than the sum of its proper divisors (108210343).

248247129 is a wasteful number, since it uses less digits than its factorization.

248247129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365327.

The product of its digits is 64512, while the sum is 39.

The square root of 248247129 is about 15755.8601478942. The cubic root of 248247129 is about 628.4847510523.

The spelling of 248247129 in words is "two hundred forty-eight million, two hundred forty-seven thousand, one hundred twenty-nine".