148243553 has 6 divisors (see below), whose sum is σ = 157016934. Its totient is φ = 139476096.

The previous prime is 148243547. The next prime is 148243559. The reversal of 148243553 is 355342841.

It is an interprime number because it is at equal distance from previous prime (148243547) and next prime (148243559).

It can be written as a sum of positive squares in 3 ways, for example, as 88134544 + 60109009 = 9388^2 + 7753^2 .

It is not a de Polignac number, because 148243553 - 2¹⁰ = 148242529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148243559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48725 + ... + 51677.

It is an arithmetic number, because the mean of its divisors is an integer number (26169489).

Almost surely, 2^148243553 is an apocalyptic number.

It is an amenable number.

148243553 is a deficient number, since it is larger than the sum of its proper divisors (8773381).

148243553 is an frugal number, since it uses more digits than its factorization.

148243553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923 (or 2970 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 148243553 is about 12175.5309124490. The cubic root of 148243553 is about 529.2472439376.

The spelling of 148243553 in words is "one hundred forty-eight million, two hundred forty-three thousand, five hundred fifty-three".