148990 has 16 divisors (see below), whose sum is σ = 274752. Its totient is φ = 58144.

The previous prime is 148961. The next prime is 148991. The reversal of 148990 is 99841.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 628.

It is an arithmetic number, because the mean of its divisors is an integer number (17172).

2¹⁴⁸⁹⁹⁰ is an apocalyptic number.

148990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148990 is a deficient number, since it is larger than the sum of its proper divisors (125762).

148990 is a wasteful number, since it uses less digits than its factorization.

148990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 148990 is about 385.9922279010. The cubic root of 148990 is about 53.0134058885.

The spelling of 148990 in words is "one hundred forty-eight thousand, nine hundred ninety".