1137961 has 4 divisors (see below), whose sum is σ = 1241424. Its totient is φ = 1034500.

The previous prime is 1137959. The next prime is 1137973. The reversal of 1137961 is 1697311.

It is the 436-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1137961 - 2¹ = 1137959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1137911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51715 + ... + 51736.

It is an arithmetic number, because the mean of its divisors is an integer number (310356).

2^1137961 is an apocalyptic number.

1137961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1137961 is a deficient number, since it is larger than the sum of its proper divisors (103463).

1137961 is a wasteful number, since it uses less digits than its factorization.

1137961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103462.

The product of its digits is 1134, while the sum is 28.

The square root of 1137961 is about 1066.7525486260. The cubic root of 1137961 is about 104.4020739644.

The spelling of 1137961 in words is "one million, one hundred thirty-seven thousand, nine hundred sixty-one".