274157545 has 4 divisors (see below), whose sum is σ = 328989060. Its totient is φ = 219326032.

The previous prime is 274157519. The next prime is 274157557. The reversal of 274157545 is 545751472.

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 164557584 + 109599961 = 12828^2 + 10469^2 .

It is a cyclic number.

It is not a de Polignac number, because 274157545 - 2⁷ = 274157417 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 274157498 and 274157507.

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, 27415750 + ... + 27415759.

It is an arithmetic number, because the mean of its divisors is an integer number (82247265).

Almost surely, 2^274157545 is an apocalyptic number.

It is an amenable number.

274157545 is a deficient number, since it is larger than the sum of its proper divisors (54831515).

274157545 is an equidigital number, since it uses as much as digits as its factorization.

274157545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54831514.

The product of its digits is 196000, while the sum is 40.

The square root of 274157545 is about 16557.7034941443. The cubic root of 274157545 is about 649.6309897606.

The spelling of 274157545 in words is "two hundred seventy-four million, one hundred fifty-seven thousand, five hundred forty-five".