105214253654 has 4 divisors (see below), whose sum is σ = 157821380484. Its totient is φ = 52607126826.

The previous prime is 105214253653. The next prime is 105214253663. The reversal of 105214253654 is 456352412501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105214253654² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105214253653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26303563412 + ... + 26303563415.

It is an arithmetic number, because the mean of its divisors is an integer number (39455345121).

Almost surely, 2^105214253654 is an apocalyptic number.

105214253654 is a deficient number, since it is larger than the sum of its proper divisors (52607126830).

105214253654 is an equidigital number, since it uses as much as digits as its factorization.

105214253654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52607126829.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 105214253654 in words is "one hundred five billion, two hundred fourteen million, two hundred fifty-three thousand, six hundred fifty-four".