140518998 has 12 divisors (see below), whose sum is σ = 304457868. Its totient is φ = 46839660.

The previous prime is 140518997. The next prime is 140518999. The reversal of 140518998 is 899815041.

140518998 is a `hidden beast` number, since 1 + 40 + 518 + 9 + 98 = 666.

It is an interprime number because it is at equal distance from previous prime (140518997) and next prime (140518999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140518997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3903288 + ... + 3903323.

It is an arithmetic number, because the mean of its divisors is an integer number (25371489).

Almost surely, 2^140518998 is an apocalyptic number.

140518998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

140518998 is an abundant number, since it is smaller than the sum of its proper divisors (163938870).

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

140518998 is a wasteful number, since it uses less digits than its factorization.

140518998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806619 (or 7806616 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 140518998 is about 11854.0709463036. The cubic root of 140518998 is about 519.8902603730.

The spelling of 140518998 in words is "one hundred forty million, five hundred eighteen thousand, nine hundred ninety-eight".