140631351587 has 2 divisors, whose sum is σ = 140631351588. Its totient is φ = 140631351586.

The previous prime is 140631351527. The next prime is 140631351643. The reversal of 140631351587 is 785153136041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140631351587 - 2¹² = 140631347491 is a prime.

It is not a weakly prime, because it can be changed into another prime (140631351527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70315675793 + 70315675794.

It is an arithmetic number, because the mean of its divisors is an integer number (70315675794).

Almost surely, 2^140631351587 is an apocalyptic number.

140631351587 is a deficient number, since it is larger than the sum of its proper divisors (1).

140631351587 is an equidigital number, since it uses as much as digits as its factorization.

140631351587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 140631351587 in words is "one hundred forty billion, six hundred thirty-one million, three hundred fifty-one thousand, five hundred eighty-seven".