123525040 has 20 divisors (see below), whose sum is σ = 287195904. Its totient is φ = 49409984.

The previous prime is 123525037. The next prime is 123525047. The reversal of 123525040 is 40525321.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (123525047) 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, 771952 + ... + 772111.

Almost surely, 2^123525040 is an apocalyptic number.

123525040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123525040 is an abundant number, since it is smaller than the sum of its proper divisors (163670864).

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

123525040 is a wasteful number, since it uses less digits than its factorization.

123525040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544076 (or 1544070 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 123525040 is about 11114.1819312084. The cubic root of 123525040 is about 498.0256004216.

The spelling of 123525040 in words is "one hundred twenty-three million, five hundred twenty-five thousand, forty".