145194624 has 48 divisors (see below), whose sum is σ = 417815970. Its totient is φ = 48397824.

The previous prime is 145194611. The next prime is 145194641. The reversal of 145194624 is 426491541.

145194624 is a `hidden beast` number, since 14 + 5 + 19 + 4 + 624 = 666.

It can be written as a sum of positive squares in only one way, i.e., 139996224 + 5198400 = 11832^2 + 2280^2 .

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61867 + ... + 64170.

Almost surely, 2^145194624 is an apocalyptic number.

It is an amenable number.

145194624 is an abundant number, since it is smaller than the sum of its proper divisors (272621346).

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

145194624 is a wasteful number, since it uses less digits than its factorization.

145194624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126057 (or 126042 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 145194624 is about 12049.6731905890. The cubic root of 145194624 is about 525.5937337229.

The spelling of 145194624 in words is "one hundred forty-five million, one hundred ninety-four thousand, six hundred twenty-four".