340407137 has 4 divisors (see below), whose sum is σ = 389036736. Its totient is φ = 291777540.

The previous prime is 340407131. The next prime is 340407143. The reversal of 340407137 is 731704043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (340407131) and next prime (340407143).

It is a cyclic number.

It is not a de Polignac number, because 340407137 - 2¹⁶ = 340341601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340407131) 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, 24314789 + ... + 24314802.

It is an arithmetic number, because the mean of its divisors is an integer number (97259184).

Almost surely, 2^340407137 is an apocalyptic number.

It is an amenable number.

340407137 is a deficient number, since it is larger than the sum of its proper divisors (48629599).

340407137 is an equidigital number, since it uses as much as digits as its factorization.

340407137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48629598.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 340407137 is about 18450.1256635287. The cubic root of 340407137 is about 698.2316843229.

The spelling of 340407137 in words is "three hundred forty million, four hundred seven thousand, one hundred thirty-seven".