1156497 has 8 divisors (see below), whose sum is σ = 1547520. Its totient is φ = 768240.

The previous prime is 1156483. The next prime is 1156501. The reversal of 1156497 is 7946511.

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

It is not a de Polignac number, because 1156497 - 2⁷ = 1156369 is a prime.

It is a super-2 number, since 2×1156497² = 2674970622018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1156427) 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, 672 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (193440).

2^1156497 is an apocalyptic number.

It is an amenable number.

1156497 is a deficient number, since it is larger than the sum of its proper divisors (391023).

1156497 is an equidigital number, since it uses as much as digits as its factorization.

1156497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its digits is 7560, while the sum is 33.

The square root of 1156497 is about 1075.4055049143. The cubic root of 1156497 is about 104.9658846084.

It can be divided in two parts, 1156 and 497, that added together give a triangular number (1653 = T₅₇).

The spelling of 1156497 in words is "one million, one hundred fifty-six thousand, four hundred ninety-seven".