1147219408 has 20 divisors (see below), whose sum is σ = 2244748068. Its totient is φ = 567929600.

The previous prime is 1147219399. The next prime is 1147219417. The reversal of 1147219408 is 8049127411.

It is an interprime number because it is at equal distance from previous prime (1147219399) and next prime (1147219417).

It can be written as a sum of positive squares in 2 ways, for example, as 1072431504 + 74787904 = 32748^2 + 8648^2 .

It is a super-2 number, since 2×1147219408² = 2632224740183740928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353341 + ... + 356572.

Almost surely, 2^1147219408 is an apocalyptic number.

It is an amenable number.

1147219408 is a deficient number, since it is larger than the sum of its proper divisors (1097528660).

1147219408 is a wasteful number, since it uses less digits than its factorization.

1147219408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710022 (or 710016 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1147219408 is about 33870.6275111637. The cubic root of 1147219408 is about 1046.8444667094.

The spelling of 1147219408 in words is "one billion, one hundred forty-seven million, two hundred nineteen thousand, four hundred eight".