145457553 has 8 divisors (see below), whose sum is σ = 195424416. Its totient is φ = 96231200.

The previous prime is 145457539. The next prime is 145457561. The reversal of 145457553 is 355754541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145457553 - 2⁸ = 145457297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145457503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184668 + ... + 185453.

It is an arithmetic number, because the mean of its divisors is an integer number (24428052).

Almost surely, 2^145457553 is an apocalyptic number.

It is an amenable number.

145457553 is a deficient number, since it is larger than the sum of its proper divisors (49966863).

145457553 is a wasteful number, since it uses less digits than its factorization.

145457553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370255.

The product of its digits is 210000, while the sum is 39.

The square root of 145457553 is about 12060.5784687137. The cubic root of 145457553 is about 525.9108035465.

The spelling of 145457553 in words is "one hundred forty-five million, four hundred fifty-seven thousand, five hundred fifty-three".