105420902 has 8 divisors (see below), whose sum is σ = 159101976. Its totient is φ = 52386912.

The previous prime is 105420877. The next prime is 105420923. The reversal of 105420902 is 209024501.

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

It is a super-2 number, since 2×105420902² = 22227133156987208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161363 + ... + 162014.

It is an arithmetic number, because the mean of its divisors is an integer number (19887747).

Almost surely, 2^105420902 is an apocalyptic number.

105420902 is a deficient number, since it is larger than the sum of its proper divisors (53681074).

105420902 is a wasteful number, since it uses less digits than its factorization.

105420902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323542.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 105420902 is about 10267.4681397120. The cubic root of 105420902 is about 472.3989343670.

The spelling of 105420902 in words is "one hundred five million, four hundred twenty thousand, nine hundred two".