149464720 has 20 divisors (see below), whose sum is σ = 347505660. Its totient is φ = 59785856.

The previous prime is 149464709. The next prime is 149464723. The reversal of 149464720 is 27464941.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60652944 + 88811776 = 7788^2 + 9424^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 149464720.

It is not an unprimeable number, because it can be changed into a prime (149464723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 934075 + ... + 934234.

It is an arithmetic number, because the mean of its divisors is an integer number (17375283).

Almost surely, 2^149464720 is an apocalyptic number.

149464720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149464720 is an abundant number, since it is smaller than the sum of its proper divisors (198040940).

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

149464720 is a wasteful number, since it uses less digits than its factorization.

149464720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868322 (or 1868316 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 149464720 is about 12225.5764690259. The cubic root of 149464720 is about 530.6965092123.

The spelling of 149464720 in words is "one hundred forty-nine million, four hundred sixty-four thousand, seven hundred twenty".