545571157 has 8 divisors (see below), whose sum is σ = 584155800. Its totient is φ = 507707904.

The previous prime is 545571083. The next prime is 545571163. The reversal of 545571157 is 751175545.

It can be written as a sum of positive squares in 4 ways, for example, as 23951236 + 521619921 = 4894^2 + 22839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545571157 - 2¹⁹ = 545046869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545571457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178782 + ... + 181807.

It is an arithmetic number, because the mean of its divisors is an integer number (73019475).

Almost surely, 2^545571157 is an apocalyptic number.

It is an amenable number.

545571157 is a deficient number, since it is larger than the sum of its proper divisors (38584643).

545571157 is a wasteful number, since it uses less digits than its factorization.

545571157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360695.

The product of its digits is 122500, while the sum is 40.

The square root of 545571157 is about 23357.4646954673. The cubic root of 545571157 is about 817.1161621767.

The spelling of 545571157 in words is "five hundred forty-five million, five hundred seventy-one thousand, one hundred fifty-seven".