145724508 has 30 divisors (see below), whose sum is σ = 380953496. Its totient is φ = 48574728.

The previous prime is 145724497. The next prime is 145724539. The reversal of 145724508 is 805427541.

145724508 is a `hidden beast` number, since 145 + 7 + 2 + 4 + 508 = 666.

145724508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 224560 + ... + 225207.

Almost surely, 2^145724508 is an apocalyptic number.

145724508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145724508 is an abundant number, since it is smaller than the sum of its proper divisors (235228988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145724508 is a wasteful number, since it uses less digits than its factorization.

145724508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449783 (or 449772 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 145724508 is about 12071.6406507152. The cubic root of 145724508 is about 526.2323377112.

The spelling of 145724508 in words is "one hundred forty-five million, seven hundred twenty-four thousand, five hundred eight".