148697481 has 8 divisors (see below), whose sum is σ = 198836064. Its totient is φ = 98845280.

The previous prime is 148697467. The next prime is 148697533. The reversal of 148697481 is 184796841.

148697481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 148697481 - 2⁵ = 148697449 is a prime.

It is a super-2 number, since 2×148697481² = 44221881711490722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 148697481.

It is not an unprimeable number, because it can be changed into a prime (148697431) 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, 70380 + ... + 72461.

It is an arithmetic number, because the mean of its divisors is an integer number (24854508).

Almost surely, 2^148697481 is an apocalyptic number.

It is an amenable number.

148697481 is a deficient number, since it is larger than the sum of its proper divisors (50138583).

148697481 is a wasteful number, since it uses less digits than its factorization.

148697481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143191.

The product of its digits is 387072, while the sum is 48.

The square root of 148697481 is about 12194.1576584855. The cubic root of 148697481 is about 529.7868859567.

The spelling of 148697481 in words is "one hundred forty-eight million, six hundred ninety-seven thousand, four hundred eighty-one".