1157625019 has 2 divisors, whose sum is σ = 1157625020. Its totient is φ = 1157625018.

The previous prime is 1157624977. The next prime is 1157625043. The reversal of 1157625019 is 9105267511.

It is a strong prime.

It is an emirp because it is prime and its reverse (9105267511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1157625019 - 2¹³ = 1157616827 is a prime.

It is a super-2 number, since 2×1157625019² = 2680191369229500722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1157625089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578812509 + 578812510.

It is an arithmetic number, because the mean of its divisors is an integer number (578812510).

Almost surely, 2^1157625019 is an apocalyptic number.

1157625019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157625019 is an equidigital number, since it uses as much as digits as its factorization.

1157625019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 37.

The square root of 1157625019 is about 34023.8889458569. Note that the first 3 decimals coincide. The cubic root of 1157625019 is about 1050.0000057445. Note that the first 5 decimals are identical.

The spelling of 1157625019 in words is "one billion, one hundred fifty-seven million, six hundred twenty-five thousand, nineteen".