34139457 has 12 divisors (see below), whose sum is σ = 53795664. Its totient is φ = 20690520.

The previous prime is 34139449. The next prime is 34139459. The reversal of 34139457 is 75493143.

It is not a de Polignac number, because 34139457 - 2³ = 34139449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34139459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172323 + ... + 172520.

It is an arithmetic number, because the mean of its divisors is an integer number (4482972).

Almost surely, 2^34139457 is an apocalyptic number.

It is an amenable number.

34139457 is a deficient number, since it is larger than the sum of its proper divisors (19656207).

34139457 is a wasteful number, since it uses less digits than its factorization.

34139457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344860 (or 344857 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 34139457 is about 5842.8979967136. The cubic root of 34139457 is about 324.4035039048.

It can be divided in two parts, 34139 and 457, that added together give a square (34596 = 186²).

The spelling of 34139457 in words is "thirty-four million, one hundred thirty-nine thousand, four hundred fifty-seven".