149249381453 has 2 divisors, whose sum is σ = 149249381454. Its totient is φ = 149249381452.

The previous prime is 149249381429. The next prime is 149249381467. The reversal of 149249381453 is 354183942941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148870962244 + 378419209 = 385838^2 + 19453^2 .

It is a cyclic number.

It is not a de Polignac number, because 149249381453 - 2⁶ = 149249381389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149249381395 and 149249381404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149249381353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74624690726 + 74624690727.

It is an arithmetic number, because the mean of its divisors is an integer number (74624690727).

Almost surely, 2^149249381453 is an apocalyptic number.

It is an amenable number.

149249381453 is a deficient number, since it is larger than the sum of its proper divisors (1).

149249381453 is an equidigital number, since it uses as much as digits as its factorization.

149249381453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 53.

The spelling of 149249381453 in words is "one hundred forty-nine billion, two hundred forty-nine million, three hundred eighty-one thousand, four hundred fifty-three".