145737553 has 16 divisors (see below), whose sum is σ = 162005760. Its totient is φ = 130254336.

The previous prime is 145737521. The next prime is 145737577. The reversal of 145737553 is 355737541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145737553 - 2⁵ = 145737521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145737503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58038 + ... + 60496.

It is an arithmetic number, because the mean of its divisors is an integer number (10125360).

Almost surely, 2^145737553 is an apocalyptic number.

145737553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145737553 is a deficient number, since it is larger than the sum of its proper divisors (16268207).

145737553 is a wasteful number, since it uses less digits than its factorization.

145737553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its digits is 220500, while the sum is 40.

The square root of 145737553 is about 12072.1809545749. The cubic root of 145737553 is about 526.2480397051.

The spelling of 145737553 in words is "one hundred forty-five million, seven hundred thirty-seven thousand, five hundred fifty-three".