105452545 has 32 divisors (see below), whose sum is σ = 143917056. Its totient is φ = 73483200.

The previous prime is 105452519. The next prime is 105452549. The reversal of 105452545 is 545254501.

It is not a de Polignac number, because 105452545 - 2¹¹ = 105450497 is a prime.

It is a super-2 number, since 2×105452545² = 22240478493954050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105452549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216292 + ... + 216778.

It is an arithmetic number, because the mean of its divisors is an integer number (4497408).

Almost surely, 2^105452545 is an apocalyptic number.

It is an amenable number.

105452545 is a deficient number, since it is larger than the sum of its proper divisors (38464511).

105452545 is a wasteful number, since it uses less digits than its factorization.

105452545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 105452545 is about 10269.0089589989. The cubic root of 105452545 is about 472.4461945208.

The spelling of 105452545 in words is "one hundred five million, four hundred fifty-two thousand, five hundred forty-five".