207029139 has 8 divisors (see below), whose sum is σ = 276110592. Its totient is φ = 137983560.

The previous prime is 207029117. The next prime is 207029153. The reversal of 207029139 is 931920702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 207029139 - 2¹² = 207025043 is a prime.

It is a super-2 number, since 2×207029139² = 85722128790162642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (207029159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10602 + ... + 22944.

It is an arithmetic number, because the mean of its divisors is an integer number (34513824).

Almost surely, 2^207029139 is an apocalyptic number.

207029139 is a deficient number, since it is larger than the sum of its proper divisors (69081453).

207029139 is a wasteful number, since it uses less digits than its factorization.

207029139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17937.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 207029139 is about 14388.5071845553. The cubic root of 207029139 is about 591.5759257082.

The spelling of 207029139 in words is "two hundred seven million, twenty-nine thousand, one hundred thirty-nine".