140011481 has 8 divisors (see below), whose sum is σ = 141556800. Its totient is φ = 138471120.

The previous prime is 140011477. The next prime is 140011489. The reversal of 140011481 is 184110041.

It is a happy number.

140011481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140011481 - 2² = 140011477 is a prime.

It is a super-2 number, since 2×140011481² = 39206429623626722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140011489) 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, 90686 + ... + 92216.

It is an arithmetic number, because the mean of its divisors is an integer number (17694600).

Almost surely, 2^140011481 is an apocalyptic number.

It is an amenable number.

140011481 is a deficient number, since it is larger than the sum of its proper divisors (1545319).

140011481 is a wasteful number, since it uses less digits than its factorization.

140011481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 140011481 is about 11832.6447170529. The cubic root of 140011481 is about 519.2636038506.

The spelling of 140011481 in words is "one hundred forty million, eleven thousand, four hundred eighty-one".