634982141 has 4 divisors (see below), whose sum is σ = 638652732. Its totient is φ = 631311552.

The previous prime is 634982119. The next prime is 634982149. The reversal of 634982141 is 141289436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 603734041 + 31248100 = 24571^2 + 5590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634982141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634982095 and 634982104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634982149) 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, 1835036 + ... + 1835381.

It is an arithmetic number, because the mean of its divisors is an integer number (159663183).

Almost surely, 2^634982141 is an apocalyptic number.

It is an amenable number.

634982141 is a deficient number, since it is larger than the sum of its proper divisors (3670591).

634982141 is a wasteful number, since it uses less digits than its factorization.

634982141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670590.

The product of its digits is 41472, while the sum is 38.

The square root of 634982141 is about 25198.8519778184. The cubic root of 634982141 is about 859.5157454918.

The spelling of 634982141 in words is "six hundred thirty-four million, nine hundred eighty-two thousand, one hundred forty-one".