149965061 has 4 divisors (see below), whose sum is σ = 155136300. Its totient is φ = 144793824.

The previous prime is 149965051. The next prime is 149965063. The reversal of 149965061 is 160569941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47348161 + 102616900 = 6881^2 + 10130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149965061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149965063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585576 + ... + 2585633.

It is an arithmetic number, because the mean of its divisors is an integer number (38784075).

Almost surely, 2^149965061 is an apocalyptic number.

It is an amenable number.

149965061 is a deficient number, since it is larger than the sum of its proper divisors (5171239).

149965061 is an equidigital number, since it uses as much as digits as its factorization.

149965061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171238.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 149965061 is about 12246.0222521438. The cubic root of 149965061 is about 531.2880278015.

The spelling of 149965061 in words is "one hundred forty-nine million, nine hundred sixty-five thousand, sixty-one".