140256198 has 48 divisors (see below), whose sum is σ = 317693376. Its totient is φ = 46374120.

The previous prime is 140256197. The next prime is 140256211. The reversal of 140256198 is 891652041.

140256198 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 561 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140256197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62565 + ... + 64767.

It is an arithmetic number, because the mean of its divisors is an integer number (6618612).

Almost surely, 2^140256198 is an apocalyptic number.

140256198 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 140256198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158846688).

140256198 is an abundant number, since it is smaller than the sum of its proper divisors (177437178).

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

140256198 is a wasteful number, since it uses less digits than its factorization.

140256198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 140256198 is about 11842.9809592011. The cubic root of 140256198 is about 519.5659568392.

It can be divided in two parts, 1402 and 56198, that added together give a square (57600 = 240²).

The spelling of 140256198 in words is "one hundred forty million, two hundred fifty-six thousand, one hundred ninety-eight".