1156355450 has 24 divisors (see below), whose sum is σ = 2208954972. Its totient is φ = 450040320.

The previous prime is 1156355449. The next prime is 1156355489. The reversal of 1156355450 is 545536511.

It can be written as a sum of positive squares in 6 ways, for example, as 318658201 + 837697249 = 17851^2 + 28943^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1156355450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310679 + ... + 314378.

Almost surely, 2^1156355450 is an apocalyptic number.

1156355450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1156355450 is a deficient number, since it is larger than the sum of its proper divisors (1052599522).

1156355450 is a wasteful number, since it uses less digits than its factorization.

1156355450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625106 (or 625101 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 1156355450 is about 34005.2268041253. The cubic root of 1156355450 is about 1049.6160198392.

The spelling of 1156355450 in words is "one billion, one hundred fifty-six million, three hundred fifty-five thousand, four hundred fifty".