1230958 has 4 divisors (see below), whose sum is σ = 1846440. Its totient is φ = 615478.

The previous prime is 1230949. The next prime is 1230967. The reversal of 1230958 is 8590321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8590321 = 17 ⋅505313.

It is an interprime number because it is at equal distance from previous prime (1230949) and next prime (1230967).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307738 + ... + 307741.

It is an arithmetic number, because the mean of its divisors is an integer number (461610).

2^1230958 is an apocalyptic number.

1230958 is a deficient number, since it is larger than the sum of its proper divisors (615482).

1230958 is an equidigital number, since it uses as much as digits as its factorization.

1230958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615481.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1230958 is about 1109.4854663311. The cubic root of 1230958 is about 107.1719365725.

The spelling of 1230958 in words is "one million, two hundred thirty thousand, nine hundred fifty-eight".