123261045 has 16 divisors (see below), whose sum is σ = 197427840. Its totient is φ = 65669184.

The previous prime is 123261043. The next prime is 123261077. The reversal of 123261045 is 540162321.

It is not a de Polignac number, because 123261045 - 2¹ = 123261043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123261043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12192 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (12339240).

Almost surely, 2^123261045 is an apocalyptic number.

123261045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123261045 is a deficient number, since it is larger than the sum of its proper divisors (74166795).

123261045 is a wasteful number, since it uses less digits than its factorization.

123261045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8764.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 123261045 is about 11102.2990862253. The cubic root of 123261045 is about 497.6705575831.

The spelling of 123261045 in words is "one hundred twenty-three million, two hundred sixty-one thousand, forty-five".