121906006 has 16 divisors (see below), whose sum is σ = 187799040. Its totient is φ = 59328360.

The previous prime is 121905991. The next prime is 121906019. The reversal of 121906006 is 600609121.

It is a super-2 number, since 2×121906006² = 29722148597744072, 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 7 ways as a sum of consecutive naturals, for example, 5785 + ... + 16651.

It is an arithmetic number, because the mean of its divisors is an integer number (11737440).

Almost surely, 2^121906006 is an apocalyptic number.

121906006 is a deficient number, since it is larger than the sum of its proper divisors (65893034).

121906006 is a wasteful number, since it uses less digits than its factorization.

121906006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 121906006 is about 11041.1052888739. The cubic root of 121906006 is about 495.8401621418.

The spelling of 121906006 in words is "one hundred twenty-one million, nine hundred six thousand, six".