1145259099 has 24 divisors (see below), whose sum is σ = 1675682112. Its totient is φ = 753667200.

The previous prime is 1145259061. The next prime is 1145259103. The reversal of 1145259099 is 9909525411.

1145259099 is a `hidden beast` number, since 1 + 1 + 4 + 52 + 590 + 9 + 9 = 666.

It is not a de Polignac number, because 1145259099 - 2²¹ = 1143161947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145259299) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331887 + ... + 335319.

It is an arithmetic number, because the mean of its divisors is an integer number (69820088).

Almost surely, 2^1145259099 is an apocalyptic number.

1145259099 is a deficient number, since it is larger than the sum of its proper divisors (530423013).

1145259099 is a wasteful number, since it uses less digits than its factorization.

1145259099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3904 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The square root of 1145259099 is about 33841.6769531298. The cubic root of 1145259099 is about 1046.2478622619.

The spelling of 1145259099 in words is "one billion, one hundred forty-five million, two hundred fifty-nine thousand, ninety-nine".