1934208137 has 4 divisors (see below), whose sum is σ = 1934365716. Its totient is φ = 1934050560.

The previous prime is 1934208131. The next prime is 1934208139. The reversal of 1934208137 is 7318024391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 715081081 + 1219127056 = 26741^2 + 34916^2 .

It is a cyclic number.

It is not a de Polignac number, because 1934208137 - 2²⁰ = 1933159561 is a prime.

It is a super-2 number, since 2×1934208137² = 7482322234474021538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1934208137.

It is not an unprimeable number, because it can be changed into a prime (1934208131) 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, 58664 + ... + 85497.

It is an arithmetic number, because the mean of its divisors is an integer number (483591429).

Almost surely, 2^1934208137 is an apocalyptic number.

It is an amenable number.

1934208137 is a deficient number, since it is larger than the sum of its proper divisors (157579).

1934208137 is a wasteful number, since it uses less digits than its factorization.

1934208137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157578.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1934208137 is about 43979.6332067470. The cubic root of 1934208137 is about 1245.9513031612.

The spelling of 1934208137 in words is "one billion, nine hundred thirty-four million, two hundred eight thousand, one hundred thirty-seven".