8156045 has 4 divisors (see below), whose sum is σ = 9787260. Its totient is φ = 6524832.

The previous prime is 8156023. The next prime is 8156063. The reversal of 8156045 is 5406518.

It is a happy number.

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 5900041 + 2256004 = 2429^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 8156045 - 2⁶ = 8155981 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 8155999 and 8156017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815600 + ... + 815609.

It is an arithmetic number, because the mean of its divisors is an integer number (2446815).

Almost surely, 2^8156045 is an apocalyptic number.

It is an amenable number.

8156045 is a deficient number, since it is larger than the sum of its proper divisors (1631215).

8156045 is a wasteful number, since it uses less digits than its factorization.

8156045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631214.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 8156045 is about 2855.8790240485. The cubic root of 8156045 is about 201.2920105706.

The spelling of 8156045 in words is "eight million, one hundred fifty-six thousand, forty-five".