148731445 has 8 divisors (see below), whose sum is σ = 179142840. Its totient is φ = 118541760.

The previous prime is 148731431. The next prime is 148731461. The reversal of 148731445 is 544137841.

It can be written as a sum of positive squares in 4 ways, for example, as 15421329 + 133310116 = 3927^2 + 11546^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-148731445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53946 + ... + 56635.

It is an arithmetic number, because the mean of its divisors is an integer number (22392855).

Almost surely, 2^148731445 is an apocalyptic number.

It is an amenable number.

148731445 is a deficient number, since it is larger than the sum of its proper divisors (30411395).

148731445 is a wasteful number, since it uses less digits than its factorization.

148731445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110855.

The product of its digits is 53760, while the sum is 37.

The square root of 148731445 is about 12195.5502130900. The cubic root of 148731445 is about 529.8272191035.

The spelling of 148731445 in words is "one hundred forty-eight million, seven hundred thirty-one thousand, four hundred forty-five".