148987399 has 32 divisors (see below), whose sum is σ = 177666048. Its totient is φ = 123552000.

The previous prime is 148987393. The next prime is 148987411. The reversal of 148987399 is 993789841.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-148987399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148987393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549634 + ... + 549904.

It is an arithmetic number, because the mean of its divisors is an integer number (5552064).

Almost surely, 2^148987399 is an apocalyptic number.

148987399 is a deficient number, since it is larger than the sum of its proper divisors (28678649).

148987399 is a wasteful number, since it uses less digits than its factorization.

148987399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its digits is 3919104, while the sum is 58.

The square root of 148987399 is about 12206.0394477488. The cubic root of 148987399 is about 530.1309739203.

It can be divided in two parts, 1489 and 87399, that added together give a palindrome (88888).

The spelling of 148987399 in words is "one hundred forty-eight million, nine hundred eighty-seven thousand, three hundred ninety-nine".