1501552201 has 4 divisors (see below), whose sum is σ = 1501684372. Its totient is φ = 1501420032.

The previous prime is 1501552181. The next prime is 1501552207. The reversal of 1501552201 is 1022551051.

It is a happy number.

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 1290605625 + 210946576 = 35925^2 + 14524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1501552201 - 2²³ = 1493163593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501552207) 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, 47256 + ... + 72361.

It is an arithmetic number, because the mean of its divisors is an integer number (375421093).

Almost surely, 2^1501552201 is an apocalyptic number.

It is an amenable number.

1501552201 is a deficient number, since it is larger than the sum of its proper divisors (132171).

1501552201 is a wasteful number, since it uses less digits than its factorization.

1501552201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132170.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1501552201 is about 38749.8671094495. The cubic root of 1501552201 is about 1145.1089567882.

The spelling of 1501552201 in words is "one billion, five hundred one million, five hundred fifty-two thousand, two hundred one".