213746753 has 4 divisors (see below), whose sum is σ = 233178288. Its totient is φ = 194315220.

The previous prime is 213746737. The next prime is 213746759. The reversal of 213746753 is 357647312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 213746753 - 2⁴ = 213746737 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (213746759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9715751 + ... + 9715772.

It is an arithmetic number, because the mean of its divisors is an integer number (58294572).

Almost surely, 2^213746753 is an apocalyptic number.

It is an amenable number.

213746753 is a deficient number, since it is larger than the sum of its proper divisors (19431535).

213746753 is a wasteful number, since it uses less digits than its factorization.

213746753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19431534.

The product of its digits is 105840, while the sum is 38.

The square root of 213746753 is about 14620.0804717348. The cubic root of 213746753 is about 597.9063631571.

The spelling of 213746753 in words is "two hundred thirteen million, seven hundred forty-six thousand, seven hundred fifty-three".