149420497783 has 2 divisors, whose sum is σ = 149420497784. Its totient is φ = 149420497782.

The previous prime is 149420497781. The next prime is 149420497789. The reversal of 149420497783 is 387794024941.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149420497783 - 2¹ = 149420497781 is a prime.

Together with 149420497781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149420497781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74710248891 + 74710248892.

It is an arithmetic number, because the mean of its divisors is an integer number (74710248892).

Almost surely, 2^149420497783 is an apocalyptic number.

149420497783 is a deficient number, since it is larger than the sum of its proper divisors (1).

149420497783 is an equidigital number, since it uses as much as digits as its factorization.

149420497783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 149420497783 in words is "one hundred forty-nine billion, four hundred twenty million, four hundred ninety-seven thousand, seven hundred eighty-three".