148965390 has 144 divisors (see below), whose sum is σ = 477286992. Its totient is φ = 32030208.

The previous prime is 148965379. The next prime is 148965413. The reversal of 148965390 is 93569841.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 73977 + ... + 75963.

It is an arithmetic number, because the mean of its divisors is an integer number (3314493).

Almost surely, 2^148965390 is an apocalyptic number.

148965390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 148965390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238643496).

148965390 is an abundant number, since it is smaller than the sum of its proper divisors (328321602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148965390 is a wasteful number, since it uses less digits than its factorization.

148965390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 148965390 is about 12205.1378525603. The cubic root of 148965390 is about 530.1048682960.

The spelling of 148965390 in words is "one hundred forty-eight million, nine hundred sixty-five thousand, three hundred ninety".