1238975061 has 4 divisors (see below), whose sum is σ = 1651966752. Its totient is φ = 825983372.

The previous prime is 1238975057. The next prime is 1238975069. The reversal of 1238975061 is 1605798321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1238975061 - 2² = 1238975057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238975069) 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, 206495841 + ... + 206495846.

It is an arithmetic number, because the mean of its divisors is an integer number (412991688).

Almost surely, 2^1238975061 is an apocalyptic number.

It is an amenable number.

1238975061 is a deficient number, since it is larger than the sum of its proper divisors (412991691).

1238975061 is an equidigital number, since it uses as much as digits as its factorization.

1238975061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412991690.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1238975061 is about 35199.0775589361. The cubic root of 1238975061 is about 1074.0409867182.

The spelling of 1238975061 in words is "one billion, two hundred thirty-eight million, nine hundred seventy-five thousand, sixty-one".