149128980 has 288 divisors, whose sum is σ = 566673408. Its totient is φ = 28454400.

The previous prime is 149128963. The next prime is 149129041. The reversal of 149128980 is 89821941.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 780685 + ... + 780875.

It is an arithmetic number, because the mean of its divisors is an integer number (1967616).

Almost surely, 2^149128980 is an apocalyptic number.

149128980 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 149128980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283336704).

149128980 is an abundant number, since it is smaller than the sum of its proper divisors (417544428).

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

149128980 is a wasteful number, since it uses less digits than its factorization.

149128980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 149128980 is about 12211.8376995438. The cubic root of 149128980 is about 530.2988465309.

The spelling of 149128980 in words is "one hundred forty-nine million, one hundred twenty-eight thousand, nine hundred eighty".