340545531 has 16 divisors (see below), whose sum is σ = 480643200. Its totient is φ = 213873408.

The previous prime is 340545487. The next prime is 340545533. The reversal of 340545531 is 135545043.

It is not a de Polignac number, because 340545531 - 2⁹ = 340545019 is a prime.

It is a super-2 number, since 2×340545531² = 231942517368143922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340545533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6486 + ... + 26891.

It is an arithmetic number, because the mean of its divisors is an integer number (30040200).

Almost surely, 2^340545531 is an apocalyptic number.

340545531 is a deficient number, since it is larger than the sum of its proper divisors (140097669).

340545531 is a wasteful number, since it uses less digits than its factorization.

340545531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33578.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 340545531 is about 18453.8757717722. The cubic root of 340545531 is about 698.3262945440.

The spelling of 340545531 in words is "three hundred forty million, five hundred forty-five thousand, five hundred thirty-one".