145261123 has 16 divisors (see below), whose sum is σ = 173615616. Its totient is φ = 118831680.

The previous prime is 145261121. The next prime is 145261147. The reversal of 145261123 is 321162541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145261123 - 2¹ = 145261121 is a prime.

It is a super-2 number, since 2×145261123² = 42201587710442258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145261121) 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, 109303 + ... + 110623.

It is an arithmetic number, because the mean of its divisors is an integer number (10850976).

Almost surely, 2^145261123 is an apocalyptic number.

145261123 is a deficient number, since it is larger than the sum of its proper divisors (28354493).

145261123 is a wasteful number, since it uses less digits than its factorization.

145261123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its digits is 1440, while the sum is 25.

The square root of 145261123 is about 12052.4322441572. The cubic root of 145261123 is about 525.6739619531.

The spelling of 145261123 in words is "one hundred forty-five million, two hundred sixty-one thousand, one hundred twenty-three".