148719865 has 32 divisors (see below), whose sum is σ = 212576256. Its totient is φ = 97735680.

The previous prime is 148719847. The next prime is 148719869. The reversal of 148719865 is 568917841.

It is a de Polignac number, because none of the positive numbers 2^k-148719865 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148719869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121999 + ... + 123211.

It is an arithmetic number, because the mean of its divisors is an integer number (6643008).

Almost surely, 2^148719865 is an apocalyptic number.

It is an amenable number.

148719865 is a deficient number, since it is larger than the sum of its proper divisors (63856391).

148719865 is a wasteful number, since it uses less digits than its factorization.

148719865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369.

The product of its digits is 483840, while the sum is 49.

The square root of 148719865 is about 12195.0754405211. The cubic root of 148719865 is about 529.8134682377.

The spelling of 148719865 in words is "one hundred forty-eight million, seven hundred nineteen thousand, eight hundred sixty-five".