1962551 has 2 divisors, whose sum is σ = 1962552. Its totient is φ = 1962550.

The previous prime is 1962523. The next prime is 1962557. The reversal of 1962551 is 1552691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1962551 - 2¹⁰ = 1961527 is a prime.

It is a Chen prime.

It is equal to p₁₄₆₃₆₉ and since 1962551 and 146369 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1962557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981275 + 981276.

It is an arithmetic number, because the mean of its divisors is an integer number (981276).

2^1962551 is an apocalyptic number.

1962551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1962551 is an equidigital number, since it uses as much as digits as its factorization.

1962551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 29.

The square root of 1962551 is about 1400.9107751745. The cubic root of 1962551 is about 125.2007653735.

The spelling of 1962551 in words is "one million, nine hundred sixty-two thousand, five hundred fifty-one".