101813901 has 32 divisors (see below), whose sum is σ = 167401728. Its totient is φ = 53713920.

The previous prime is 101813851. The next prime is 101813911. The reversal of 101813901 is 109318101.

It is not a de Polignac number, because 101813901 - 2¹³ = 101805709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101813911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16231 + ... + 21611.

It is an arithmetic number, because the mean of its divisors is an integer number (5231304).

Almost surely, 2^101813901 is an apocalyptic number.

It is an amenable number.

101813901 is a deficient number, since it is larger than the sum of its proper divisors (65587827).

101813901 is a wasteful number, since it uses less digits than its factorization.

101813901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 101813901 is about 10090.2874587397. The cubic root of 101813901 is about 466.9485443874.

The spelling of 101813901 in words is "one hundred one million, eight hundred thirteen thousand, nine hundred one".