105140254 has 8 divisors (see below), whose sum is σ = 163148760. Its totient is φ = 50757336.

The previous prime is 105140227. The next prime is 105140261. The reversal of 105140254 is 452041501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105140254² = 22108946022369032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906324 + ... + 906439.

It is an arithmetic number, because the mean of its divisors is an integer number (20393595).

Almost surely, 2^105140254 is an apocalyptic number.

105140254 is a deficient number, since it is larger than the sum of its proper divisors (58008506).

105140254 is a wasteful number, since it uses less digits than its factorization.

105140254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812794.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105140254 is about 10253.7921765559. The cubic root of 105140254 is about 471.9793602724.

Adding to 105140254 its reverse (452041501), we get a palindrome (557181755).

The spelling of 105140254 in words is "one hundred five million, one hundred forty thousand, two hundred fifty-four".