101954009 has 8 divisors (see below), whose sum is σ = 109819392. Its totient is φ = 94374720.

The previous prime is 101953961. The next prime is 101954011. The reversal of 101954009 is 900459101.

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

It is a cyclic number.

It is not a de Polignac number, because 101954009 - 2¹⁶ = 101888473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101954059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70784 + ... + 72209.

It is an arithmetic number, because the mean of its divisors is an integer number (13727424).

Almost surely, 2^101954009 is an apocalyptic number.

It is an amenable number.

101954009 is a deficient number, since it is larger than the sum of its proper divisors (7865383).

101954009 is a wasteful number, since it uses less digits than its factorization.

101954009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143047.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 101954009 is about 10097.2277878634. The cubic root of 101954009 is about 467.1626383992.

The spelling of 101954009 in words is "one hundred one million, nine hundred fifty-four thousand, nine".