1156403245 has 8 divisors (see below), whose sum is σ = 1411204320. Its totient is φ = 909442320.

The previous prime is 1156403233. The next prime is 1156403273. The reversal of 1156403245 is 5423046511.

It is a happy number.

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

It is not a de Polignac number, because 1156403245 - 2⁷ = 1156403117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1959711 + ... + 1960300.

It is an arithmetic number, because the mean of its divisors is an integer number (176400540).

Almost surely, 2^1156403245 is an apocalyptic number.

It is an amenable number.

1156403245 is a deficient number, since it is larger than the sum of its proper divisors (254801075).

1156403245 is an equidigital number, since it uses as much as digits as its factorization.

1156403245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920075.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1156403245 is about 34005.9295564759. The cubic root of 1156403245 is about 1049.6304807060.

Adding to 1156403245 its reverse (5423046511), we get a palindrome (6579449756).

The spelling of 1156403245 in words is "one billion, one hundred fifty-six million, four hundred three thousand, two hundred forty-five".