150225661 has 8 divisors (see below), whose sum is σ = 154601784. Its totient is φ = 145866240.

The previous prime is 150225643. The next prime is 150225671. The reversal of 150225661 is 166522051.

It can be written as a sum of positive squares in 4 ways, for example, as 80820100 + 69405561 = 8990^2 + 8331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150225661 - 2⁵ = 150225629 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 (150225631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15381 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (19325223).

Almost surely, 2^150225661 is an apocalyptic number.

It is an amenable number.

150225661 is a deficient number, since it is larger than the sum of its proper divisors (4376123).

150225661 is an equidigital number, since it uses as much as digits as its factorization.

150225661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8351.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 150225661 is about 12256.6578234036. The cubic root of 150225661 is about 531.5955961949.

The spelling of 150225661 in words is "one hundred fifty million, two hundred twenty-five thousand, six hundred sixty-one".