148668697 has 4 divisors (see below), whose sum is σ = 150032740. Its totient is φ = 147304656.

The previous prime is 148668691. The next prime is 148668713. The reversal of 148668697 is 796866841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796866841 = 43 ⋅18531787.

It can be written as a sum of positive squares in 2 ways, for example, as 126990361 + 21678336 = 11269^2 + 4656^2 .

It is a cyclic number.

It is not a de Polignac number, because 148668697 - 2²³ = 140280089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148668691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681858 + ... + 682075.

It is an arithmetic number, because the mean of its divisors is an integer number (37508185).

Almost surely, 2^148668697 is an apocalyptic number.

It is an amenable number.

148668697 is a deficient number, since it is larger than the sum of its proper divisors (1364043).

148668697 is a wasteful number, since it uses less digits than its factorization.

148668697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364042.

The product of its digits is 3483648, while the sum is 55.

The square root of 148668697 is about 12192.9773640403. The cubic root of 148668697 is about 529.7526993883.

The spelling of 148668697 in words is "one hundred forty-eight million, six hundred sixty-eight thousand, six hundred ninety-seven".