140073381 has 60 divisors (see below), whose sum is σ = 250522272. Its totient is φ = 76397904.

The previous prime is 140073371. The next prime is 140073383. The reversal of 140073381 is 183370041.

It is not a de Polignac number, because 140073381 - 2⁹ = 140072869 is a prime.

It is a super-2 number, since 2×140073381² = 39241104129542322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140073383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 299710 + ... + 300176.

Almost surely, 2^140073381 is an apocalyptic number.

It is an amenable number.

140073381 is a deficient number, since it is larger than the sum of its proper divisors (110448891).

140073381 is an equidigital number, since it uses as much as digits as its factorization.

140073381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 140073381 is about 11835.2600731881. The cubic root of 140073381 is about 519.3401158653.

The spelling of 140073381 in words is "one hundred forty million, seventy-three thousand, three hundred eighty-one".