5145720 has 64 divisors (see below), whose sum is σ = 15599520. Its totient is φ = 1357824.

The previous prime is 5145719. The next prime is 5145727. The reversal of 5145720 is 275415.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16284 + ... + 16596.

Almost surely, 2^5145720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5145720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7799760).

5145720 is an abundant number, since it is smaller than the sum of its proper divisors (10453800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5145720 is a wasteful number, since it uses less digits than its factorization.

5145720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 460 counting only the distinct ones).

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

The square root of 5145720 is about 2268.4179509076. The cubic root of 5145720 is about 172.6428977649.

It can be divided in two parts, 51 and 45720, that multiplied together give a triangular number (2331720 = T₂₁₅₉).

The spelling of 5145720 in words is "five million, one hundred forty-five thousand, seven hundred twenty".