140751730 has 32 divisors (see below), whose sum is σ = 289981440. Its totient is φ = 48185280.

The previous prime is 140751727. The next prime is 140751731. The reversal of 140751730 is 37157041.

140751730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140751730² = 39622098995985800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140751731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68356 + ... + 70384.

It is an arithmetic number, because the mean of its divisors is an integer number (9061920).

Almost surely, 2^140751730 is an apocalyptic number.

140751730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140751730 is an abundant number, since it is smaller than the sum of its proper divisors (149229710).

140751730 is a wasteful number, since it uses less digits than its factorization.

140751730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 140751730 is about 11863.8834282877. The cubic root of 140751730 is about 520.1771216149.

The spelling of 140751730 in words is "one hundred forty million, seven hundred fifty-one thousand, seven hundred thirty".