140671523 has 2 divisors, whose sum is σ = 140671524. Its totient is φ = 140671522.

The previous prime is 140671499. The next prime is 140671537. The reversal of 140671523 is 325176041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140671523 - 2¹² = 140667427 is a prime.

It is not a weakly prime, because it can be changed into another prime (140671543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70335761 + 70335762.

It is an arithmetic number, because the mean of its divisors is an integer number (70335762).

Almost surely, 2^140671523 is an apocalyptic number.

140671523 is a deficient number, since it is larger than the sum of its proper divisors (1).

140671523 is an equidigital number, since it uses as much as digits as its factorization.

140671523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 140671523 is about 11860.5026453351. The cubic root of 140671523 is about 520.0782956563.

The spelling of 140671523 in words is "one hundred forty million, six hundred seventy-one thousand, five hundred twenty-three".