148857345 has 120 divisors (see below), whose sum is σ = 334863144. Its totient is φ = 62705664.

The previous prime is 148857341. The next prime is 148857353. The reversal of 148857345 is 543758841.

It can be written as a sum of positive squares in 4 ways, for example, as 31438449 + 117418896 = 5607^2 + 10836^2 .

It is not a de Polignac number, because 148857345 - 2² = 148857341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 148857345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148857341) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 257697 + ... + 258273.

Almost surely, 2^148857345 is an apocalyptic number.

148857345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148857345 is an abundant number, since it is smaller than the sum of its proper divisors (186005799).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148857345 is a wasteful number, since it uses less digits than its factorization.

148857345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 605 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 148857345 is about 12200.7108399470. The cubic root of 148857345 is about 529.9766751335.

The spelling of 148857345 in words is "one hundred forty-eight million, eight hundred fifty-seven thousand, three hundred forty-five".