140055379 has 2 divisors, whose sum is σ = 140055380. Its totient is φ = 140055378.

The previous prime is 140055371. The next prime is 140055389. The reversal of 140055379 is 973550041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140055379 - 2³ = 140055371 is a prime.

It is equal to p_7915192 and since 140055379 and 7915192 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (140055371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70027689 + 70027690.

It is an arithmetic number, because the mean of its divisors is an integer number (70027690).

Almost surely, 2^140055379 is an apocalyptic number.

140055379 is a deficient number, since it is larger than the sum of its proper divisors (1).

140055379 is an equidigital number, since it uses as much as digits as its factorization.

140055379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 140055379 is about 11834.4995246947. The cubic root of 140055379 is about 519.3178666669.

The spelling of 140055379 in words is "one hundred forty million, fifty-five thousand, three hundred seventy-nine".