148978893 has 8 divisors (see below), whose sum is σ = 227015488. Its totient is φ = 85130784.

The previous prime is 148978883. The next prime is 148978913. The reversal of 148978893 is 398879841.

148978893 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 not a de Polignac number, because 148978893 - 2¹⁴ = 148962509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148978853) 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, 3547096 + ... + 3547137.

It is an arithmetic number, because the mean of its divisors is an integer number (28376936).

Almost surely, 2^148978893 is an apocalyptic number.

It is an amenable number.

148978893 is a deficient number, since it is larger than the sum of its proper divisors (78036595).

148978893 is an equidigital number, since it uses as much as digits as its factorization.

148978893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094243.

The product of its digits is 3483648, while the sum is 57.

The square root of 148978893 is about 12205.6910087057. The cubic root of 148978893 is about 530.1208849689.

The spelling of 148978893 in words is "one hundred forty-eight million, nine hundred seventy-eight thousand, eight hundred ninety-three".