1452991 has 2 divisors, whose sum is σ = 1452992. Its totient is φ = 1452990.

The previous prime is 1452977. The next prime is 1453003. The reversal of 1452991 is 1992541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1452991 - 2⁷ = 1452863 is a prime.

It is a super-2 number, since 2×1452991² = 4222365692162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1452961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726495 + 726496.

It is an arithmetic number, because the mean of its divisors is an integer number (726496).

2^1452991 is an apocalyptic number.

1452991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452991 is an equidigital number, since it uses as much as digits as its factorization.

1452991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 31.

The square root of 1452991 is about 1205.4007632319. The cubic root of 1452991 is about 113.2628906735.

It can be divided in two parts, 145 and 2991, that added together give a square (3136 = 56²).

The spelling of 1452991 in words is "one million, four hundred fifty-two thousand, nine hundred ninety-one".