149122650 has 48 divisors (see below), whose sum is σ = 372101184. Its totient is φ = 39521280.

The previous prime is 149122609. The next prime is 149122651. The reversal of 149122650 is 56221941.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (149122651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22074 + ... + 28026.

It is an arithmetic number, because the mean of its divisors is an integer number (7752108).

Almost surely, 2^149122650 is an apocalyptic number.

149122650 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 149122650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186050592).

149122650 is an abundant number, since it is smaller than the sum of its proper divisors (222978534).

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

149122650 is a wasteful number, since it uses less digits than its factorization.

149122650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6135 (or 6130 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 149122650 is about 12211.5785220421. The cubic root of 149122650 is about 530.2913433186.

The spelling of 149122650 in words is "one hundred forty-nine million, one hundred twenty-two thousand, six hundred fifty".