2145201501 has 8 divisors (see below), whose sum is σ = 2926786720. Its totient is φ = 1396875312.

The previous prime is 2145201439. The next prime is 2145201521. The reversal of 2145201501 is 1051025412.

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

It is not a de Polignac number, because 2145201501 - 2⁶ = 2145201437 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 (2145201521) 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, 8314606 + ... + 8314863.

It is an arithmetic number, because the mean of its divisors is an integer number (365848340).

Almost surely, 2^2145201501 is an apocalyptic number.

It is an amenable number.

2145201501 is a deficient number, since it is larger than the sum of its proper divisors (781585219).

2145201501 is a wasteful number, since it uses less digits than its factorization.

2145201501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16629515.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2145201501 is about 46316.3200286897. The cubic root of 2145201501 is about 1289.7019724960.

Adding to 2145201501 its reverse (1051025412), we get a palindrome (3196226913).

The spelling of 2145201501 in words is "two billion, one hundred forty-five million, two hundred one thousand, five hundred one".