140387441 has 4 divisors (see below), whose sum is σ = 140502900. Its totient is φ = 140271984.

The previous prime is 140387431. The next prime is 140387461. The reversal of 140387441 is 144783041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130051216 + 10336225 = 11404^2 + 3215^2 .

It is a cyclic number.

It is not a de Polignac number, because 140387441 - 2²⁶ = 73278577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140387398 and 140387407.

It is not an unprimeable number, because it can be changed into a prime (140387431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55886 + ... + 58343.

It is an arithmetic number, because the mean of its divisors is an integer number (35125725).

Almost surely, 2^140387441 is an apocalyptic number.

It is an amenable number.

140387441 is a deficient number, since it is larger than the sum of its proper divisors (115459).

140387441 is a wasteful number, since it uses less digits than its factorization.

140387441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115458.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 140387441 is about 11848.5206249557. The cubic root of 140387441 is about 519.7279654534.

The spelling of 140387441 in words is "one hundred forty million, three hundred eighty-seven thousand, four hundred forty-one".