545023157 has 16 divisors (see below), whose sum is σ = 652603392. Its totient is φ = 445038000.

The previous prime is 545023153. The next prime is 545023159. The reversal of 545023157 is 751320545.

It is a cyclic number.

It is not a de Polignac number, because 545023157 - 2² = 545023153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545023153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33668 + ... + 47154.

It is an arithmetic number, because the mean of its divisors is an integer number (40787712).

Almost surely, 2^545023157 is an apocalyptic number.

It is an amenable number.

545023157 is a deficient number, since it is larger than the sum of its proper divisors (107580235).

545023157 is a wasteful number, since it uses less digits than its factorization.

545023157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13768.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 545023157 is about 23345.7310230372. The cubic root of 545023157 is about 816.8424858901.

The spelling of 545023157 in words is "five hundred forty-five million, twenty-three thousand, one hundred fifty-seven".