1274137138 has 8 divisors (see below), whose sum is σ = 1972857600. Its totient is φ = 616517940.

The previous prime is 1274137133. The next prime is 1274137177. The reversal of 1274137138 is 8317314721.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1274137097 and 1274137106.

It is not an unprimeable number, because it can be changed into a prime (1274137133) 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, 10275238 + ... + 10275361.

It is an arithmetic number, because the mean of its divisors is an integer number (246607200).

Almost surely, 2^1274137138 is an apocalyptic number.

1274137138 is a deficient number, since it is larger than the sum of its proper divisors (698720462).

1274137138 is a wasteful number, since it uses less digits than its factorization.

1274137138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20550632.

The product of its digits is 28224, while the sum is 37.

The square root of 1274137138 is about 35695.0576130646. The cubic root of 1274137138 is about 1084.1067741803.

The spelling of 1274137138 in words is "one billion, two hundred seventy-four million, one hundred thirty-seven thousand, one hundred thirty-eight".