2500147 has 4 divisors (see below), whose sum is σ = 2692480. Its totient is φ = 2307816.

The previous prime is 2500117. The next prime is 2500151. The reversal of 2500147 is 7410052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2500147 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500117) 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, 96147 + ... + 96172.

It is an arithmetic number, because the mean of its divisors is an integer number (673120).

2^2500147 is an apocalyptic number.

2500147 is a deficient number, since it is larger than the sum of its proper divisors (192333).

2500147 is a wasteful number, since it uses less digits than its factorization.

2500147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192332.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2500147 is about 1581.1853148825. The cubic root of 2500147 is about 135.7235409069.

Adding to 2500147 its reverse (7410052), we get a palindrome (9910199).

The spelling of 2500147 in words is "two million, five hundred thousand, one hundred forty-seven".