123748153 has 4 divisors (see below), whose sum is σ = 123931620. Its totient is φ = 123564688.

The previous prime is 123748147. The next prime is 123748171. The reversal of 123748153 is 351847321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351847321 = 7 ⋅50263903.

It can be written as a sum of positive squares in 2 ways, for example, as 95413824 + 28334329 = 9768^2 + 5323^2 .

It is a cyclic number.

It is not a de Polignac number, because 123748153 - 2²¹ = 121651001 is a prime.

It is a super-2 number, since 2×123748153² = 30627210741822818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123748123) 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, 90718 + ... + 92071.

It is an arithmetic number, because the mean of its divisors is an integer number (30982905).

Almost surely, 2^123748153 is an apocalyptic number.

It is an amenable number.

123748153 is a deficient number, since it is larger than the sum of its proper divisors (183467).

123748153 is an equidigital number, since it uses as much as digits as its factorization.

123748153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183466.

The product of its digits is 20160, while the sum is 34.

The square root of 123748153 is about 11124.2147138573. The cubic root of 123748153 is about 498.3252674715.

The spelling of 123748153 in words is "one hundred twenty-three million, seven hundred forty-eight thousand, one hundred fifty-three".