494212151 has 4 divisors (see below), whose sum is σ = 523283472. Its totient is φ = 465140832.

The previous prime is 494212141. The next prime is 494212157. The reversal of 494212151 is 151212494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151212494 = 2 ⋅75606247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494212151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494212157) 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, 14535635 + ... + 14535668.

It is an arithmetic number, because the mean of its divisors is an integer number (130820868).

Almost surely, 2^494212151 is an apocalyptic number.

494212151 is a deficient number, since it is larger than the sum of its proper divisors (29071321).

494212151 is a wasteful number, since it uses less digits than its factorization.

494212151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29071320.

The product of its digits is 2880, while the sum is 29.

The square root of 494212151 is about 22230.8828209768. The cubic root of 494212151 is about 790.6260864988.

The spelling of 494212151 in words is "four hundred ninety-four million, two hundred twelve thousand, one hundred fifty-one".