140277493 has 2 divisors, whose sum is σ = 140277494. Its totient is φ = 140277492.

The previous prime is 140277479. The next prime is 140277497. The reversal of 140277493 is 394772041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123810129 + 16467364 = 11127^2 + 4058^2 .

It is a cyclic number.

It is not a de Polignac number, because 140277493 - 2⁵ = 140277461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140277497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70138746 + 70138747.

It is an arithmetic number, because the mean of its divisors is an integer number (70138747).

Almost surely, 2^140277493 is an apocalyptic number.

It is an amenable number.

140277493 is a deficient number, since it is larger than the sum of its proper divisors (1).

140277493 is an equidigital number, since it uses as much as digits as its factorization.

140277493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 140277493 is about 11843.8799808171. The cubic root of 140277493 is about 519.5922506199.

The spelling of 140277493 in words is "one hundred forty million, two hundred seventy-seven thousand, four hundred ninety-three".