812055454 has 8 divisors (see below), whose sum is σ = 1392095088. Its totient is φ = 348023760.

The previous prime is 812055451. The next prime is 812055463. The reversal of 812055454 is 454550218.

It is a happy number.

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

It is a super-2 number, since 2×812055454² = 1318868120742292232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812055451) 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, 29001967 + ... + 29001994.

It is an arithmetic number, because the mean of its divisors is an integer number (174011886).

Almost surely, 2^812055454 is an apocalyptic number.

812055454 is a deficient number, since it is larger than the sum of its proper divisors (580039634).

812055454 is a wasteful number, since it uses less digits than its factorization.

812055454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58003970.

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 812055454 is about 28496.5867078849. The cubic root of 812055454 is about 932.9575763211.

The spelling of 812055454 in words is "eight hundred twelve million, fifty-five thousand, four hundred fifty-four".