1156545408 has 64 divisors (see below), whose sum is σ = 3155141520. Its totient is φ = 375091200.

The previous prime is 1156545407. The next prime is 1156545419. The reversal of 1156545408 is 8045456511.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156545407) 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, 26493 + ... + 54908.

Almost surely, 2^1156545408 is an apocalyptic number.

It is an amenable number.

1156545408 is an abundant number, since it is smaller than the sum of its proper divisors (1998596112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1156545408 is an equidigital number, since it uses as much as digits as its factorization.

1156545408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81455 (or 81443 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 1156545408 is about 34008.0197600507. The cubic root of 1156545408 is about 1049.6734912229.

The spelling of 1156545408 in words is "one billion, one hundred fifty-six million, five hundred forty-five thousand, four hundred eight".