1051154399 has 2 divisors, whose sum is σ = 1051154400. Its totient is φ = 1051154398.

The previous prime is 1051154381. The next prime is 1051154437. The reversal of 1051154399 is 9934511501.

It is an a-pointer prime, because the next prime (1051154437) can be obtained adding 1051154399 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051154399 is a prime.

It is a super-2 number, since 2×1051154399² = 2209851141074102402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051154359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525577199 + 525577200.

It is an arithmetic number, because the mean of its divisors is an integer number (525577200).

Almost surely, 2^1051154399 is an apocalyptic number.

1051154399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051154399 is an equidigital number, since it uses as much as digits as its factorization.

1051154399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 1051154399 is about 32421.5113620571. The cubic root of 1051154399 is about 1016.7687051337.

The spelling of 1051154399 in words is "one billion, fifty-one million, one hundred fifty-four thousand, three hundred ninety-nine".