139954850 has 24 divisors (see below), whose sum is σ = 297504768. Its totient is φ = 47984400.

The previous prime is 139954847. The next prime is 139954891. The reversal of 139954850 is 58459931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199586 + ... + 200285.

It is an arithmetic number, because the mean of its divisors is an integer number (12396032).

Almost surely, 2^139954850 is an apocalyptic number.

139954850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139954850 is an abundant number, since it is smaller than the sum of its proper divisors (157549918).

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

139954850 is a wasteful number, since it uses less digits than its factorization.

139954850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399890 (or 399885 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 139954850 is about 11830.2514766171. The cubic root of 139954850 is about 519.1935848719.

The spelling of 139954850 in words is "one hundred thirty-nine million, nine hundred fifty-four thousand, eight hundred fifty".