5072145 has 48 divisors (see below), whose sum is σ = 9455040. Its totient is φ = 2301696.

The previous prime is 5072143. The next prime is 5072161. The reversal of 5072145 is 5412705.

5072145 = 80² + 81² + ... + 250².

It is not a de Polignac number, because 5072145 - 2¹ = 5072143 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137067 + ... + 137103.

It is an arithmetic number, because the mean of its divisors is an integer number (196980).

Almost surely, 2^5072145 is an apocalyptic number.

It is an amenable number.

5072145 is a deficient number, since it is larger than the sum of its proper divisors (4382895).

5072145 is a wasteful number, since it uses less digits than its factorization.

5072145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 5072145 is about 2252.1423134429. The cubic root of 5072145 is about 171.8161118369.

The spelling of 5072145 in words is "five million, seventy-two thousand, one hundred forty-five".