1156414391 has 8 divisors (see below), whose sum is σ = 1295639184. Its totient is φ = 1022872320.

The previous prime is 1156414381. The next prime is 1156414459. The reversal of 1156414391 is 1934146511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1156414391 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 (1156414321) 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, 1420250 + ... + 1421063.

It is an arithmetic number, because the mean of its divisors is an integer number (161954898).

Almost surely, 2^1156414391 is an apocalyptic number.

1156414391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1156414391 is a deficient number, since it is larger than the sum of its proper divisors (139224793).

1156414391 is a wasteful number, since it uses less digits than its factorization.

1156414391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841361.

The product of its digits is 12960, while the sum is 35.

The square root of 1156414391 is about 34006.0934392647. The cubic root of 1156414391 is about 1049.6338529852.

The spelling of 1156414391 in words is "one billion, one hundred fifty-six million, four hundred fourteen thousand, three hundred ninety-one".