140421550249 has 2 divisors, whose sum is σ = 140421550250. Its totient is φ = 140421550248.

The previous prime is 140421550229. The next prime is 140421550319. The reversal of 140421550249 is 942055124041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91547394624 + 48874155625 = 302568^2 + 221075^2 .

It is a cyclic number.

It is not a de Polignac number, because 140421550249 - 2¹³ = 140421542057 is a prime.

It is not a weakly prime, because it can be changed into another prime (140421550229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210775124 + 70210775125.

It is an arithmetic number, because the mean of its divisors is an integer number (70210775125).

Almost surely, 2^140421550249 is an apocalyptic number.

It is an amenable number.

140421550249 is a deficient number, since it is larger than the sum of its proper divisors (1).

140421550249 is an equidigital number, since it uses as much as digits as its factorization.

140421550249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 140421550249 in words is "one hundred forty billion, four hundred twenty-one million, five hundred fifty thousand, two hundred forty-nine".