149946298477 has 2 divisors, whose sum is σ = 149946298478. Its totient is φ = 149946298476.

The previous prime is 149946298433. The next prime is 149946298499. The reversal of 149946298477 is 774892649941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149946298441 + 36 = 387229^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 149946298477 - 2¹⁵ = 149946265709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149956298477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74973149238 + 74973149239.

It is an arithmetic number, because the mean of its divisors is an integer number (74973149239).

Almost surely, 2^149946298477 is an apocalyptic number.

It is an amenable number.

149946298477 is a deficient number, since it is larger than the sum of its proper divisors (1).

149946298477 is an equidigital number, since it uses as much as digits as its factorization.

149946298477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 219469824, while the sum is 70.

The spelling of 149946298477 in words is "one hundred forty-nine billion, nine hundred forty-six million, two hundred ninety-eight thousand, four hundred seventy-seven".