148978560 has 128 divisors (see below), whose sum is σ = 490383360. Its totient is φ = 38430720.

The previous prime is 148978559. The next prime is 148978603. The reversal of 148978560 is 65879841.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×148978560² = 44389222679347200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58269 + ... + 60771.

It is an arithmetic number, because the mean of its divisors is an integer number (3831120).

Almost surely, 2^148978560 is an apocalyptic number.

148978560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148978560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245191680).

148978560 is an abundant number, since it is smaller than the sum of its proper divisors (341404800).

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

148978560 is a wasteful number, since it uses less digits than its factorization.

148978560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 148978560 is about 12205.6773675204. The cubic root of 148978560 is about 530.1204899904.

The spelling of 148978560 in words is "one hundred forty-eight million, nine hundred seventy-eight thousand, five hundred sixty".