148791947 has 4 divisors (see below), whose sum is σ = 148866960. Its totient is φ = 148716936.

The previous prime is 148791919. The next prime is 148791961. The reversal of 148791947 is 749197841.

148791947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148791947 - 2⁸ = 148791691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148791895 and 148791904.

It is not an unprimeable number, because it can be changed into a prime (148791977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34448 + ... + 38525.

It is an arithmetic number, because the mean of its divisors is an integer number (37216740).

Almost surely, 2^148791947 is an apocalyptic number.

148791947 is a deficient number, since it is larger than the sum of its proper divisors (75013).

148791947 is an equidigital number, since it uses as much as digits as its factorization.

148791947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75012.

The product of its digits is 508032, while the sum is 50.

The square root of 148791947 is about 12198.0304557744. The cubic root of 148791947 is about 529.8990516174.

The spelling of 148791947 in words is "one hundred forty-eight million, seven hundred ninety-one thousand, nine hundred forty-seven".