1501550201 has 4 divisors (see below), whose sum is σ = 1506441552. Its totient is φ = 1496658852.

The previous prime is 1501550189. The next prime is 1501550209. The reversal of 1501550201 is 1020551051.

It is a happy number.

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: 1020551051 = 13 ⋅78503927.

It is a cyclic number.

It is not a de Polignac number, because 1501550201 - 2¹⁰ = 1501549177 is a prime.

It is a super-2 number, since 2×1501550201² = 4509306012246280802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501550209) 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, 2445215 + ... + 2445828.

It is an arithmetic number, because the mean of its divisors is an integer number (376610388).

Almost surely, 2^1501550201 is an apocalyptic number.

It is an amenable number.

1501550201 is a deficient number, since it is larger than the sum of its proper divisors (4891351).

1501550201 is an equidigital number, since it uses as much as digits as its factorization.

1501550201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891350.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1501550201 is about 38749.8413029008. The cubic root of 1501550201 is about 1145.1084483768.

The spelling of 1501550201 in words is "one billion, five hundred one million, five hundred fifty thousand, two hundred one".