662154131 has 8 divisors (see below), whose sum is σ = 701329104. Its totient is φ = 623004160.

The previous prime is 662154121. The next prime is 662154133. The reversal of 662154131 is 131451266.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 662154131 - 2¹⁴ = 662137747 is a prime.

It is a super-2 number, since 2×662154131² = 876896186400730322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662154094 and 662154103.

It is not an unprimeable number, because it can be changed into a prime (662154133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101051 + ... + 107403.

It is an arithmetic number, because the mean of its divisors is an integer number (87666138).

Almost surely, 2^662154131 is an apocalyptic number.

662154131 is a deficient number, since it is larger than the sum of its proper divisors (39174973).

662154131 is a wasteful number, since it uses less digits than its factorization.

662154131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12501.

The product of its digits is 4320, while the sum is 29.

The square root of 662154131 is about 25732.3557219311. The cubic root of 662154131 is about 871.6049692597.

The spelling of 662154131 in words is "six hundred sixty-two million, one hundred fifty-four thousand, one hundred thirty-one".