146428553 has 2 divisors, whose sum is σ = 146428554. Its totient is φ = 146428552.

The previous prime is 146428549. The next prime is 146428643. The reversal of 146428553 is 355824641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142396489 + 4032064 = 11933^2 + 2008^2 .

It is an emirp because it is prime and its reverse (355824641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146428553 - 2² = 146428549 is a prime.

It is a super-2 number, since 2×146428553² = 42882642267347618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146422553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73214276 + 73214277.

It is an arithmetic number, because the mean of its divisors is an integer number (73214277).

Almost surely, 2^146428553 is an apocalyptic number.

It is an amenable number.

146428553 is a deficient number, since it is larger than the sum of its proper divisors (1).

146428553 is an equidigital number, since it uses as much as digits as its factorization.

146428553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 38.

The square root of 146428553 is about 12100.7666286066. The cubic root of 146428553 is about 527.0784460996.

The spelling of 146428553 in words is "one hundred forty-six million, four hundred twenty-eight thousand, five hundred fifty-three".