144723530 has 16 divisors (see below), whose sum is σ = 297717120. Its totient is φ = 49619472.

The previous prime is 144723517. The next prime is 144723569. The reversal of 144723530 is 35327441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 144723493 and 144723502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033670 + ... + 1033809.

It is an arithmetic number, because the mean of its divisors is an integer number (18607320).

Almost surely, 2^144723530 is an apocalyptic number.

144723530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144723530 is an abundant number, since it is smaller than the sum of its proper divisors (152993590).

144723530 is a wasteful number, since it uses less digits than its factorization.

144723530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067493.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 144723530 is about 12030.1093095616. The cubic root of 144723530 is about 525.0246760888.

The spelling of 144723530 in words is "one hundred forty-four million, seven hundred twenty-three thousand, five hundred thirty".