340641053 has 4 divisors (see below), whose sum is σ = 360678780. Its totient is φ = 320603328.

The previous prime is 340641029. The next prime is 340641137. The reversal of 340641053 is 350146043.

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 199459129 + 141181924 = 14123^2 + 11882^2 .

It is a cyclic number.

It is not a de Polignac number, because 340641053 - 2¹⁰ = 340640029 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 (340641013) 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, 10018838 + ... + 10018871.

It is an arithmetic number, because the mean of its divisors is an integer number (90169695).

Almost surely, 2^340641053 is an apocalyptic number.

It is an amenable number.

340641053 is a deficient number, since it is larger than the sum of its proper divisors (20037727).

340641053 is a wasteful number, since it uses less digits than its factorization.

340641053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20037726.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 340641053 is about 18456.4637187084. The cubic root of 340641053 is about 698.3915812505.

Adding to 340641053 its reverse (350146043), we get a palindrome (690787096).

The spelling of 340641053 in words is "three hundred forty million, six hundred forty-one thousand, fifty-three".