149249381539 has 2 divisors, whose sum is σ = 149249381540. Its totient is φ = 149249381538.

The previous prime is 149249381467. The next prime is 149249381563. The reversal of 149249381539 is 935183942941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149249381539 - 2⁹ = 149249381027 is a prime.

It is not a weakly prime, because it can be changed into another prime (149249384539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74624690769 + 74624690770.

It is an arithmetic number, because the mean of its divisors is an integer number (74624690770).

Almost surely, 2^149249381539 is an apocalyptic number.

149249381539 is a deficient number, since it is larger than the sum of its proper divisors (1).

149249381539 is an equidigital number, since it uses as much as digits as its factorization.

149249381539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 58.

The spelling of 149249381539 in words is "one hundred forty-nine billion, two hundred forty-nine million, three hundred eighty-one thousand, five hundred thirty-nine".