1149240397 has 8 divisors (see below), whose sum is σ = 1164058560. Its totient is φ = 1134504000.

The previous prime is 1149240377. The next prime is 1149240431. The reversal of 1149240397 is 7930429411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1149240397 - 2¹⁹ = 1148716109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149240377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8104 + ... + 48622.

It is an arithmetic number, because the mean of its divisors is an integer number (145507320).

Almost surely, 2^1149240397 is an apocalyptic number.

It is an amenable number.

1149240397 is a deficient number, since it is larger than the sum of its proper divisors (14818163).

1149240397 is a wasteful number, since it uses less digits than its factorization.

1149240397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40883.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1149240397 is about 33900.4483303687. The cubic root of 1149240397 is about 1047.4588275446.

The spelling of 1149240397 in words is "one billion, one hundred forty-nine million, two hundred forty thousand, three hundred ninety-seven".