141509623 has 4 divisors (see below), whose sum is σ = 142624000. Its totient is φ = 140395248.

The previous prime is 141509539. The next prime is 141509651. The reversal of 141509623 is 326905141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326905141 = 23 ⋅14213267.

It is a cyclic number.

It is not a de Polignac number, because 141509623 - 2⁹ = 141509111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141509023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556998 + ... + 557251.

It is an arithmetic number, because the mean of its divisors is an integer number (35656000).

Almost surely, 2^141509623 is an apocalyptic number.

141509623 is a deficient number, since it is larger than the sum of its proper divisors (1114377).

141509623 is a wasteful number, since it uses less digits than its factorization.

141509623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114376.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 141509623 is about 11895.7817313533. The cubic root of 141509623 is about 521.1091009271.

The spelling of 141509623 in words is "one hundred forty-one million, five hundred nine thousand, six hundred twenty-three".