150281661 has 4 divisors (see below), whose sum is σ = 200375552. Its totient is φ = 100187772.

The previous prime is 150281633. The next prime is 150281723. The reversal of 150281661 is 166182051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 150281661 - 2⁷ = 150281533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150281611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25046941 + ... + 25046946.

It is an arithmetic number, because the mean of its divisors is an integer number (50093888).

Almost surely, 2^150281661 is an apocalyptic number.

It is an amenable number.

150281661 is a deficient number, since it is larger than the sum of its proper divisors (50093891).

150281661 is an equidigital number, since it uses as much as digits as its factorization.

150281661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50093890.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 150281661 is about 12258.9420832305. The cubic root of 150281661 is about 531.6616427343.

The spelling of 150281661 in words is "one hundred fifty million, two hundred eighty-one thousand, six hundred sixty-one".