113420551 has 2 divisors, whose sum is σ = 113420552. Its totient is φ = 113420550.

The previous prime is 113420539. The next prime is 113420561. The reversal of 113420551 is 155024311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113420551 - 2¹⁵ = 113387783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113420501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56710275 + 56710276.

It is an arithmetic number, because the mean of its divisors is an integer number (56710276).

Almost surely, 2^113420551 is an apocalyptic number.

113420551 is a deficient number, since it is larger than the sum of its proper divisors (1).

113420551 is an equidigital number, since it uses as much as digits as its factorization.

113420551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 113420551 is about 10649.9084972595. The cubic root of 113420551 is about 484.0578315228.

Adding to 113420551 its reverse (155024311), we get a palindrome (268444862).

The spelling of 113420551 in words is "one hundred thirteen million, four hundred twenty thousand, five hundred fifty-one".