145751572 has 6 divisors (see below), whose sum is σ = 255065258. Its totient is φ = 72875784.

The previous prime is 145751563. The next prime is 145751587. The reversal of 145751572 is 275157541.

It can be written as a sum of positive squares in only one way, i.e., 145588356 + 163216 = 12066^2 + 404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18218943 + ... + 18218950.

Almost surely, 2^145751572 is an apocalyptic number.

It is an amenable number.

145751572 is a deficient number, since it is larger than the sum of its proper divisors (109313686).

145751572 is a wasteful number, since it uses less digits than its factorization.

145751572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36437897 (or 36437895 counting only the distinct ones).

The product of its digits is 49000, while the sum is 37.

The square root of 145751572 is about 12072.7615730619. The cubic root of 145751572 is about 526.2649130380.

The spelling of 145751572 in words is "one hundred forty-five million, seven hundred fifty-one thousand, five hundred seventy-two".