1205991452 has 6 divisors (see below), whose sum is σ = 2110485048. Its totient is φ = 602995724.

The previous prime is 1205991443. The next prime is 1205991461. The reversal of 1205991452 is 2541995021.

It is an interprime number because it is at equal distance from previous prime (1205991443) and next prime (1205991461).

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, 150748928 + ... + 150748935.

It is an arithmetic number, because the mean of its divisors is an integer number (351747508).

Almost surely, 2^1205991452 is an apocalyptic number.

It is an amenable number.

1205991452 is a deficient number, since it is larger than the sum of its proper divisors (904493596).

1205991452 is a wasteful number, since it uses less digits than its factorization.

1205991452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301497867 (or 301497865 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1205991452 is about 34727.3876356976. The cubic root of 1205991452 is about 1064.4242082870.

The spelling of 1205991452 in words is "one billion, two hundred five million, nine hundred ninety-one thousand, four hundred fifty-two".