138174498 has 240 divisors, whose sum is σ = 417130560. Its totient is φ = 33359040.

The previous prime is 138174497. The next prime is 138174511. The reversal of 138174498 is 894471831.

It is a happy number.

138174498 is a `hidden beast` number, since 13 + 81 + 74 + 498 = 666.

It is not an unprimeable number, because it can be changed into a prime (138174497) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2607040 + ... + 2607092.

It is an arithmetic number, because the mean of its divisors is an integer number (1738044).

Almost surely, 2^138174498 is an apocalyptic number.

138174498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 138174498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208565280).

138174498 is an abundant number, since it is smaller than the sum of its proper divisors (278956062).

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

138174498 is a wasteful number, since it uses less digits than its factorization.

138174498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 95 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 138174498 is about 11754.7649061987. The cubic root of 138174498 is about 516.9826461657.

The spelling of 138174498 in words is "one hundred thirty-eight million, one hundred seventy-four thousand, four hundred ninety-eight".