105140578 has 4 divisors (see below), whose sum is σ = 157710870. Its totient is φ = 52570288.

The previous prime is 105140557. The next prime is 105140593. The reversal of 105140578 is 875041501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 875041501 = 53 ⋅16510217.

It can be written as a sum of positive squares in only one way, i.e., 61355889 + 43784689 = 7833^2 + 6617^2 .

It is a super-2 number, since 2×105140578² = 22109082284348168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26285143 + ... + 26285146.

Almost surely, 2^105140578 is an apocalyptic number.

105140578 is a deficient number, since it is larger than the sum of its proper divisors (52570292).

105140578 is an equidigital number, since it uses as much as digits as its factorization.

105140578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52570291.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 105140578 is about 10253.8079755767. The cubic root of 105140578 is about 471.9798450888.

The spelling of 105140578 in words is "one hundred five million, one hundred forty thousand, five hundred seventy-eight".