100494551 has 2 divisors, whose sum is σ = 100494552. Its totient is φ = 100494550.

The previous prime is 100494547. The next prime is 100494587. The reversal of 100494551 is 155494001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100494551 - 2² = 100494547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100494451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50247275 + 50247276.

It is an arithmetic number, because the mean of its divisors is an integer number (50247276).

Almost surely, 2^100494551 is an apocalyptic number.

100494551 is a deficient number, since it is larger than the sum of its proper divisors (1).

100494551 is an equidigital number, since it uses as much as digits as its factorization.

100494551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 100494551 is about 10024.6970527792. The cubic root of 100494551 is about 464.9227929008.

The spelling of 100494551 in words is "one hundred million, four hundred ninety-four thousand, five hundred fifty-one".