1138348451 has 2 divisors, whose sum is σ = 1138348452. Its totient is φ = 1138348450.

The previous prime is 1138348429. The next prime is 1138348457. The reversal of 1138348451 is 1548438311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1138348451 - 2³⁰ = 64606627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138348457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569174225 + 569174226.

It is an arithmetic number, because the mean of its divisors is an integer number (569174226).

Almost surely, 2^1138348451 is an apocalyptic number.

1138348451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138348451 is an equidigital number, since it uses as much as digits as its factorization.

1138348451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 38.

The square root of 1138348451 is about 33739.4198379285. The cubic root of 1138348451 is about 1044.1392149926.

The spelling of 1138348451 in words is "one billion, one hundred thirty-eight million, three hundred forty-eight thousand, four hundred fifty-one".