145212704 has 96 divisors (see below), whose sum is σ = 359686656. Its totient is φ = 56171520.

The previous prime is 145212671. The next prime is 145212719. The reversal of 145212704 is 407212541.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136334 + ... + 137394.

It is an arithmetic number, because the mean of its divisors is an integer number (3746736).

Almost surely, 2^145212704 is an apocalyptic number.

145212704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145212704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179843328).

145212704 is an abundant number, since it is smaller than the sum of its proper divisors (214473952).

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

145212704 is a wasteful number, since it uses less digits than its factorization.

145212704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 145212704 is about 12050.4233950513. The cubic root of 145212704 is about 525.6155489023.

The spelling of 145212704 in words is "one hundred forty-five million, two hundred twelve thousand, seven hundred four".