1161957 has 8 divisors (see below), whose sum is σ = 1559776. Its totient is φ = 769392.

The previous prime is 1161949. The next prime is 1161991. The reversal of 1161957 is 7591611.

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

It is not a de Polignac number, because 1161957 - 2³ = 1161949 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 (1161947) 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, 763 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (194972).

2^1161957 is an apocalyptic number.

It is an amenable number.

1161957 is a deficient number, since it is larger than the sum of its proper divisors (397819).

1161957 is a wasteful number, since it uses less digits than its factorization.

1161957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627.

The product of its digits is 1890, while the sum is 30.

The square root of 1161957 is about 1077.9410930102. The cubic root of 1161957 is about 105.1308120196.

The spelling of 1161957 in words is "one million, one hundred sixty-one thousand, nine hundred fifty-seven".