150644401 has 4 divisors (see below), whose sum is σ = 152107072. Its totient is φ = 149181732.

The previous prime is 150644399. The next prime is 150644443. The reversal of 150644401 is 104446051.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104446051 = 197 ⋅530183.

It is a cyclic number.

It is not a de Polignac number, because 150644401 - 2¹ = 150644399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150644471) 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, 731181 + ... + 731386.

It is an arithmetic number, because the mean of its divisors is an integer number (38026768).

Almost surely, 2^150644401 is an apocalyptic number.

It is an amenable number.

150644401 is a deficient number, since it is larger than the sum of its proper divisors (1462671).

150644401 is a wasteful number, since it uses less digits than its factorization.

150644401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462670.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 150644401 is about 12273.7280807422. The cubic root of 150644401 is about 532.0890623406.

The spelling of 150644401 in words is "one hundred fifty million, six hundred forty-four thousand, four hundred one".