212713454 has 4 divisors (see below), whose sum is σ = 319070184. Its totient is φ = 106356726.

The previous prime is 212713451. The next prime is 212713489. The reversal of 212713454 is 454317212.

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

It is a super-2 number, since 2×212713454² = 90494027025220232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212713451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53178362 + ... + 53178365.

It is an arithmetic number, because the mean of its divisors is an integer number (79767546).

Almost surely, 2^212713454 is an apocalyptic number.

212713454 is a deficient number, since it is larger than the sum of its proper divisors (106356730).

212713454 is a wasteful number, since it uses less digits than its factorization.

212713454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106356729.

The product of its digits is 6720, while the sum is 29.

The square root of 212713454 is about 14584.6993112645. The cubic root of 212713454 is about 596.9413359713.

The spelling of 212713454 in words is "two hundred twelve million, seven hundred thirteen thousand, four hundred fifty-four".