145411553 has 4 divisors (see below), whose sum is σ = 166184640. Its totient is φ = 124638468.

The previous prime is 145411537. The next prime is 145411573. The reversal of 145411553 is 355114541.

145411553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145411553 - 2⁴ = 145411537 is a prime.

It is a super-2 number, since 2×145411553² = 42289039491743618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145411573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10386533 + ... + 10386546.

It is an arithmetic number, because the mean of its divisors is an integer number (41546160).

Almost surely, 2^145411553 is an apocalyptic number.

It is an amenable number.

145411553 is a deficient number, since it is larger than the sum of its proper divisors (20773087).

145411553 is an equidigital number, since it uses as much as digits as its factorization.

145411553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20773086.

The product of its digits is 6000, while the sum is 29.

The square root of 145411553 is about 12058.6712783789. The cubic root of 145411553 is about 525.8553590839.

The spelling of 145411553 in words is "one hundred forty-five million, four hundred eleven thousand, five hundred fifty-three".