123354045 has 12 divisors (see below), whose sum is σ = 213813756. Its totient is φ = 65788800.

The previous prime is 123354043. The next prime is 123354047. The reversal of 123354045 is 540453321.

It is an interprime number because it is at equal distance from previous prime (123354043) and next prime (123354047).

It can be written as a sum of positive squares in 2 ways, for example, as 20169081 + 103184964 = 4491^2 + 10158^2 .

It is not a de Polignac number, because 123354045 - 2¹ = 123354043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123354043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1370556 + ... + 1370645.

It is an arithmetic number, because the mean of its divisors is an integer number (17817813).

Almost surely, 2^123354045 is an apocalyptic number.

123354045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123354045 is a deficient number, since it is larger than the sum of its proper divisors (90459711).

123354045 is a wasteful number, since it uses less digits than its factorization.

123354045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741212 (or 2741209 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 123354045 is about 11106.4866181885. The cubic root of 123354045 is about 497.7956896460.

It can be divided in two parts, 1233 and 54045, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 123354045 in words is "one hundred twenty-three million, three hundred fifty-four thousand, forty-five".