149371489 has 4 divisors (see below), whose sum is σ = 154522260. Its totient is φ = 144220720.

The previous prime is 149371477. The next prime is 149371501. The reversal of 149371489 is 984173941.

149371489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (149371477) and next prime (149371501).

It can be written as a sum of positive squares in 2 ways, for example, as 115347600 + 34023889 = 10740^2 + 5833^2 .

It is a cyclic number.

It is not a de Polignac number, because 149371489 - 2¹⁹ = 148847201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149371429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575342 + ... + 2575399.

It is an arithmetic number, because the mean of its divisors is an integer number (38630565).

Almost surely, 2^149371489 is an apocalyptic number.

It is an amenable number.

149371489 is a deficient number, since it is larger than the sum of its proper divisors (5150771).

149371489 is an equidigital number, since it uses as much as digits as its factorization.

149371489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150770.

The product of its digits is 217728, while the sum is 46.

The square root of 149371489 is about 12221.7629252085. The cubic root of 149371489 is about 530.5861427944.

The spelling of 149371489 in words is "one hundred forty-nine million, three hundred seventy-one thousand, four hundred eighty-nine".