140730 has 16 divisors (see below), whose sum is σ = 337824. Its totient is φ = 37520.

The previous prime is 140729. The next prime is 140731. The reversal of 140730 is 37041.

140730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140729) and next prime (140731).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2316 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (21114).

2¹⁴⁰⁷³⁰ is an apocalyptic number.

140730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140730 is an abundant number, since it is smaller than the sum of its proper divisors (197094).

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

140730 is a wasteful number, since it uses less digits than its factorization.

140730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 140730 is about 375.1399738764. The cubic root of 140730 is about 52.0150351001.

Subtracting from 140730 its sum of digits (15), we obtain a triangular number (140715 = T₅₃₀).

Adding to 140730 its reverse (37041), we get a palindrome (177771).

The spelling of 140730 in words is "one hundred forty thousand, seven hundred thirty".