103155551 has 2 divisors, whose sum is σ = 103155552. Its totient is φ = 103155550.

The previous prime is 103155527. The next prime is 103155571. The reversal of 103155551 is 155551301.

It is a strong prime.

It is an emirp because it is prime and its reverse (155551301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103155551 - 2⁶ = 103155487 is a prime.

It is a super-2 number, since 2×103155551² = 21282135404227202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103155551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103155511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51577775 + 51577776.

It is an arithmetic number, because the mean of its divisors is an integer number (51577776).

Almost surely, 2^103155551 is an apocalyptic number.

103155551 is a deficient number, since it is larger than the sum of its proper divisors (1).

103155551 is an equidigital number, since it uses as much as digits as its factorization.

103155551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 103155551 is about 10156.5521216602. The cubic root of 103155551 is about 468.9906678570.

The spelling of 103155551 in words is "one hundred three million, one hundred fifty-five thousand, five hundred fifty-one".