1375125051 has 4 divisors (see below), whose sum is σ = 1833500072. Its totient is φ = 916750032.

The previous prime is 1375125047. The next prime is 1375125071. The reversal of 1375125051 is 1505215731.

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

It is not a de Polignac number, because 1375125051 - 2² = 1375125047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375125071) 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, 229187506 + ... + 229187511.

It is an arithmetic number, because the mean of its divisors is an integer number (458375018).

Almost surely, 2^1375125051 is an apocalyptic number.

1375125051 is a deficient number, since it is larger than the sum of its proper divisors (458375021).

1375125051 is an equidigital number, since it uses as much as digits as its factorization.

1375125051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458375020.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 1375125051 is about 37082.6785844820. The cubic root of 1375125051 is about 1112.0237546790.

The spelling of 1375125051 in words is "one billion, three hundred seventy-five million, one hundred twenty-five thousand, fifty-one".