378133751 has 2 divisors, whose sum is σ = 378133752. Its totient is φ = 378133750.

The previous prime is 378133711. The next prime is 378133781. The reversal of 378133751 is 157331873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378133751 - 2¹⁴ = 378117367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378133711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189066875 + 189066876.

It is an arithmetic number, because the mean of its divisors is an integer number (189066876).

Almost surely, 2^378133751 is an apocalyptic number.

378133751 is a deficient number, since it is larger than the sum of its proper divisors (1).

378133751 is an equidigital number, since it uses as much as digits as its factorization.

378133751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 378133751 is about 19445.6614955624. The cubic root of 378133751 is about 723.1279493384.

The spelling of 378133751 in words is "three hundred seventy-eight million, one hundred thirty-three thousand, seven hundred fifty-one".