5156545 has 4 divisors (see below), whose sum is σ = 6187860. Its totient is φ = 4125232.

The previous prime is 5156539. The next prime is 5156549. The reversal of 5156545 is 5456515.

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 1192464 + 3964081 = 1092^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 5156545 - 2³ = 5156537 is a prime.

It is a super-5 number, since 5×5156545⁵ (a number of 35 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156549) 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, 515650 + ... + 515659.

It is an arithmetic number, because the mean of its divisors is an integer number (1546965).

Almost surely, 2^5156545 is an apocalyptic number.

It is an amenable number.

5156545 is a deficient number, since it is larger than the sum of its proper divisors (1031315).

5156545 is a wasteful number, since it uses less digits than its factorization.

5156545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031314.

The product of its digits is 15000, while the sum is 31.

The square root of 5156545 is about 2270.8027215062. The cubic root of 5156545 is about 172.7638753539.

The spelling of 5156545 in words is "five million, one hundred fifty-six thousand, five hundred forty-five".