734988137 has 4 divisors (see below), whose sum is σ = 791525700. Its totient is φ = 678450576.

The previous prime is 734988131. The next prime is 734988139. The reversal of 734988137 is 731889437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731889437 = 1907 ⋅383791.

It can be written as a sum of positive squares in 2 ways, for example, as 263055961 + 471932176 = 16219^2 + 21724^2 .

It is a cyclic number.

It is not a de Polignac number, because 734988137 - 2²⁰ = 733939561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (734988131) 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 3 ways as a sum of consecutive naturals, for example, 28268762 + ... + 28268787.

It is an arithmetic number, because the mean of its divisors is an integer number (197881425).

Almost surely, 2^734988137 is an apocalyptic number.

It is an amenable number.

734988137 is a deficient number, since it is larger than the sum of its proper divisors (56537563).

734988137 is a wasteful number, since it uses less digits than its factorization.

734988137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56537562.

The product of its digits is 1016064, while the sum is 50.

The square root of 734988137 is about 27110.6646358956. The cubic root of 734988137 is about 902.4575372578.

The spelling of 734988137 in words is "seven hundred thirty-four million, nine hundred eighty-eight thousand, one hundred thirty-seven".