1237048138 has 8 divisors (see below), whose sum is σ = 1856414340. Its totient is φ = 618243360.

The previous prime is 1237048009. The next prime is 1237048139. The reversal of 1237048138 is 8318407321.

It can be written as a sum of positive squares in 2 ways, for example, as 1229413969 + 7634169 = 35063^2 + 2763^2 .

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 = 1237048097 and 1237048106.

It is not an unprimeable number, because it can be changed into a prime (1237048139) 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, 134803 + ... + 143686.

Almost surely, 2^1237048138 is an apocalyptic number.

1237048138 is a deficient number, since it is larger than the sum of its proper divisors (619366202).

1237048138 is a wasteful number, since it uses less digits than its factorization.

1237048138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280712.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1237048138 is about 35171.6951254841. The cubic root of 1237048138 is about 1073.4838950302.

The spelling of 1237048138 in words is "one billion, two hundred thirty-seven million, forty-eight thousand, one hundred thirty-eight".