212653742 has 8 divisors (see below), whose sum is σ = 364549296. Its totient is φ = 91137312.

The previous prime is 212653739. The next prime is 212653787. The reversal of 212653742 is 247356212.

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

It is a super-2 number, since 2×212653742² = 90443227973205128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212653699 and 212653708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7594763 + ... + 7594790.

It is an arithmetic number, because the mean of its divisors is an integer number (45568662).

Almost surely, 2^212653742 is an apocalyptic number.

212653742 is a deficient number, since it is larger than the sum of its proper divisors (151895554).

212653742 is a wasteful number, since it uses less digits than its factorization.

212653742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15189562.

The product of its digits is 20160, while the sum is 32.

The square root of 212653742 is about 14582.6520907550. The cubic root of 212653742 is about 596.8854738145.

The spelling of 212653742 in words is "two hundred twelve million, six hundred fifty-three thousand, seven hundred forty-two".