248081749 has 8 divisors (see below), whose sum is σ = 264889152. Its totient is φ = 231776160.

The previous prime is 248081741. The next prime is 248081759. The reversal of 248081749 is 947180842.

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 248081749 - 2³ = 248081741 is a prime.

It is a super-3 number, since 3×248081749³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248081741) 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, 124432 + ... + 126409.

It is an arithmetic number, because the mean of its divisors is an integer number (33111144).

Almost surely, 2^248081749 is an apocalyptic number.

It is an amenable number.

248081749 is a deficient number, since it is larger than the sum of its proper divisors (16807403).

248081749 is a wasteful number, since it uses less digits than its factorization.

248081749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250907.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 248081749 is about 15750.6110675110. The cubic root of 248081749 is about 628.3451564232.

The spelling of 248081749 in words is "two hundred forty-eight million, eighty-one thousand, seven hundred forty-nine".