140455530 has 48 divisors (see below), whose sum is σ = 386670024. Its totient is φ = 35251200.

The previous prime is 140455529. The next prime is 140455531. The reversal of 140455530 is 35554041.

It is an interprime number because it is at equal distance from previous prime (140455529) and next prime (140455531).

It can be written as a sum of positive squares in 4 ways, for example, as 124077321 + 16378209 = 11139^2 + 4047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140455494 and 140455503.

It is not an unprimeable number, because it can be changed into a prime (140455531) 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, 44371 + ... + 47430.

Almost surely, 2^140455530 is an apocalyptic number.

140455530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140455530 is an abundant number, since it is smaller than the sum of its proper divisors (246214494).

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

140455530 is a wasteful number, since it uses less digits than its factorization.

140455530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91831 (or 91828 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 140455530 is about 11851.3935889413. The cubic root of 140455530 is about 519.8119759071.

The spelling of 140455530 in words is "one hundred forty million, four hundred fifty-five thousand, five hundred thirty".