149385487 has 2 divisors, whose sum is σ = 149385488. Its totient is φ = 149385486.

The previous prime is 149385473. The next prime is 149385499. The reversal of 149385487 is 784583941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149385487 - 2¹⁹ = 148861199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149385487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149380487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74692743 + 74692744.

It is an arithmetic number, because the mean of its divisors is an integer number (74692744).

Almost surely, 2^149385487 is an apocalyptic number.

149385487 is a deficient number, since it is larger than the sum of its proper divisors (1).

149385487 is an equidigital number, since it uses as much as digits as its factorization.

149385487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The square root of 149385487 is about 12222.3355787673. The cubic root of 149385487 is about 530.6027164902.

It can be divided in two parts, 1493854 and 87, that added together give a palindrome (1493941).

The spelling of 149385487 in words is "one hundred forty-nine million, three hundred eighty-five thousand, four hundred eighty-seven".