149716620 has 192 divisors, whose sum is σ = 505128960. Its totient is φ = 36670464.

The previous prime is 149716607. The next prime is 149716621. The reversal of 149716620 is 26617941.

149716620 is a `hidden beast` number, since 1 + 497 + 166 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (149716621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431287 + ... + 431633.

It is an arithmetic number, because the mean of its divisors is an integer number (2630880).

Almost surely, 2^149716620 is an apocalyptic number.

149716620 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 149716620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252564480).

149716620 is an abundant number, since it is smaller than the sum of its proper divisors (355412340).

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

149716620 is a wasteful number, since it uses less digits than its factorization.

149716620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 149716620 is about 12235.8743046829. The cubic root of 149716620 is about 530.9944779023.

The spelling of 149716620 in words is "one hundred forty-nine million, seven hundred sixteen thousand, six hundred twenty".