340126551 has 6 divisors (see below), whose sum is σ = 491293920. Its totient is φ = 226751028.

The previous prime is 340126537. The next prime is 340126561. The reversal of 340126551 is 155621043.

340126551 is a `hidden beast` number, since 3 + 4 + 0 + 1 + 2 + 655 + 1 = 666.

It is not a de Polignac number, because 340126551 - 2⁵ = 340126519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340126511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18895911 + ... + 18895928.

It is an arithmetic number, because the mean of its divisors is an integer number (81882320).

Almost surely, 2^340126551 is an apocalyptic number.

340126551 is a deficient number, since it is larger than the sum of its proper divisors (151167369).

340126551 is a wasteful number, since it uses less digits than its factorization.

340126551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37791845 (or 37791842 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 340126551 is about 18442.5201911236. The cubic root of 340126551 is about 698.0397887297.

Adding to 340126551 its reverse (155621043), we get a palindrome (495747594).

The spelling of 340126551 in words is "three hundred forty million, one hundred twenty-six thousand, five hundred fifty-one".