1201958 has 4 divisors (see below), whose sum is σ = 1802940. Its totient is φ = 600978.

The previous prime is 1201939. The next prime is 1201961. The reversal of 1201958 is 8591021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8591021 = 19 ⋅452159.

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, 300488 + ... + 300491.

It is an arithmetic number, because the mean of its divisors is an integer number (450735).

2^1201958 is an apocalyptic number.

1201958 is a deficient number, since it is larger than the sum of its proper divisors (600982).

1201958 is an equidigital number, since it uses as much as digits as its factorization.

1201958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600981.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1201958 is about 1096.3384513917. The cubic root of 1201958 is about 106.3236223305.

Adding to 1201958 its reverse (8591021), we get a palindrome (9792979).

The spelling of 1201958 in words is "one million, two hundred one thousand, nine hundred fifty-eight".