101580545 has 16 divisors (see below), whose sum is σ = 133660800. Its totient is φ = 73497600.

The previous prime is 101580539. The next prime is 101580547. The reversal of 101580545 is 545085101.

It is not a de Polignac number, because 101580545 - 2¹⁰ = 101579521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101580547) 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, 6305 + ... + 15585.

It is an arithmetic number, because the mean of its divisors is an integer number (8353800).

Almost surely, 2^101580545 is an apocalyptic number.

It is an amenable number.

101580545 is a deficient number, since it is larger than the sum of its proper divisors (32080255).

101580545 is a wasteful number, since it uses less digits than its factorization.

101580545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9496.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 101580545 is about 10078.7174283239. The cubic root of 101580545 is about 466.5915250330.

The spelling of 101580545 in words is "one hundred one million, five hundred eighty thousand, five hundred forty-five".