79154045 has 4 divisors (see below), whose sum is σ = 94984860. Its totient is φ = 63323232.

The previous prime is 79154039. The next prime is 79154051. The reversal of 79154045 is 54045197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54045197 = 37 ⋅1460681.

It is an interprime number because it is at equal distance from previous prime (79154039) and next prime (79154051).

It can be written as a sum of positive squares in 2 ways, for example, as 43178041 + 35976004 = 6571^2 + 5998^2 .

It is a cyclic number.

It is not a de Polignac number, because 79154045 - 2¹⁴ = 79137661 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79153996 and 79154014.

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, 7915400 + ... + 7915409.

It is an arithmetic number, because the mean of its divisors is an integer number (23746215).

Almost surely, 2^79154045 is an apocalyptic number.

It is an amenable number.

79154045 is a deficient number, since it is larger than the sum of its proper divisors (15830815).

79154045 is a wasteful number, since it uses less digits than its factorization.

79154045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15830814.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 79154045 is about 8896.8559053185. The cubic root of 79154045 is about 429.3627571979.

The spelling of 79154045 in words is "seventy-nine million, one hundred fifty-four thousand, forty-five".