105999274 has 4 divisors (see below), whose sum is σ = 158998914. Its totient is φ = 52999636.

The previous prime is 105999253. The next prime is 105999287. The reversal of 105999274 is 472999501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472999501 = 13 ⋅36384577.

It can be written as a sum of positive squares in only one way, i.e., 85433049 + 20566225 = 9243^2 + 4535^2 .

It is a super-2 number, since 2×105999274² = 22471692177054152, 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, 26499817 + ... + 26499820.

Almost surely, 2^105999274 is an apocalyptic number.

105999274 is a deficient number, since it is larger than the sum of its proper divisors (52999640).

105999274 is an equidigital number, since it uses as much as digits as its factorization.

105999274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52999639.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 105999274 is about 10295.5948832498. The cubic root of 105999274 is about 473.2612686470.

The spelling of 105999274 in words is "one hundred five million, nine hundred ninety-nine thousand, two hundred seventy-four".