148190447 has 4 divisors (see below), whose sum is σ = 152970816. Its totient is φ = 143410080.

The previous prime is 148190437. The next prime is 148190453. The reversal of 148190447 is 744091841.

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 148190447 - 2⁴ = 148190431 is a prime.

It is a super-3 number, since 3×148190447³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148190447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148190417) 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, 2390138 + ... + 2390199.

It is an arithmetic number, because the mean of its divisors is an integer number (38242704).

Almost surely, 2^148190447 is an apocalyptic number.

148190447 is a deficient number, since it is larger than the sum of its proper divisors (4780369).

148190447 is an equidigital number, since it uses as much as digits as its factorization.

148190447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780368.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 148190447 is about 12173.3498676412. The cubic root of 148190447 is about 529.1840381288.

The spelling of 148190447 in words is "one hundred forty-eight million, one hundred ninety thousand, four hundred forty-seven".