140061893 has 2 divisors, whose sum is σ = 140061894. Its totient is φ = 140061892.

The previous prime is 140061877. The next prime is 140061899. The reversal of 140061893 is 398160041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75307684 + 64754209 = 8678^2 + 8047^2 .

It is an emirp because it is prime and its reverse (398160041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140061893 - 2⁴ = 140061877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140061899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70030946 + 70030947.

It is an arithmetic number, because the mean of its divisors is an integer number (70030947).

Almost surely, 2^140061893 is an apocalyptic number.

It is an amenable number.

140061893 is a deficient number, since it is larger than the sum of its proper divisors (1).

140061893 is an equidigital number, since it uses as much as digits as its factorization.

140061893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 140061893 is about 11834.7747338088. The cubic root of 140061893 is about 519.3259177302.

The spelling of 140061893 in words is "one hundred forty million, sixty-one thousand, eight hundred ninety-three".