100742705 has 16 divisors (see below), whose sum is σ = 139434240. Its totient is φ = 68444352.

The previous prime is 100742687. The next prime is 100742711. The reversal of 100742705 is 507247001.

It is a cyclic number.

It is not a de Polignac number, because 100742705 - 2¹² = 100738609 is a prime.

It is a super-2 number, since 2×100742705² = 20298185221434050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9389 + ... + 17018.

It is an arithmetic number, because the mean of its divisors is an integer number (8714640).

Almost surely, 2^100742705 is an apocalyptic number.

It is an amenable number.

100742705 is a deficient number, since it is larger than the sum of its proper divisors (38691535).

100742705 is a wasteful number, since it uses less digits than its factorization.

100742705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26528.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 100742705 is about 10037.0665535305. The cubic root of 100742705 is about 465.3051606197.

Adding to 100742705 its reverse (507247001), we get a palindrome (607989706).

The spelling of 100742705 in words is "one hundred million, seven hundred forty-two thousand, seven hundred five".