1148993401 has 2 divisors, whose sum is σ = 1148993402. Its totient is φ = 1148993400.

The previous prime is 1148993387. The next prime is 1148993429. The reversal of 1148993401 is 1043998411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131986025 + 17007376 = 33645^2 + 4124^2 .

It is an emirp because it is prime and its reverse (1043998411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1148993401 - 2⁷ = 1148993273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1148993431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574496700 + 574496701.

It is an arithmetic number, because the mean of its divisors is an integer number (574496701).

Almost surely, 2^1148993401 is an apocalyptic number.

It is an amenable number.

1148993401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148993401 is an equidigital number, since it uses as much as digits as its factorization.

1148993401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1148993401 is about 33896.8051739393. The cubic root of 1148993401 is about 1047.3837818367.

The spelling of 1148993401 in words is "one billion, one hundred forty-eight million, nine hundred ninety-three thousand, four hundred one".