140383481 has 6 divisors (see below), whose sum is σ = 163303290. Its totient is φ = 120328656.

The previous prime is 140383471. The next prime is 140383483. The reversal of 140383481 is 184383041.

140383481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 139617856 + 765625 = 11816^2 + 875^2 .

It is not a de Polignac number, because 140383481 - 2⁶ = 140383417 is a prime.

It is a super-2 number, since 2×140383481² = 39415043475354722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140383483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1432436 + ... + 1432533.

It is an arithmetic number, because the mean of its divisors is an integer number (27217215).

Almost surely, 2^140383481 is an apocalyptic number.

It is an amenable number.

140383481 is a deficient number, since it is larger than the sum of its proper divisors (22919809).

140383481 is an equidigital number, since it uses as much as digits as its factorization.

140383481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864983 (or 2864976 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 140383481 is about 11848.3535143074. The cubic root of 140383481 is about 519.7230786390.

The spelling of 140383481 in words is "one hundred forty million, three hundred eighty-three thousand, four hundred eighty-one".