145561712 has 20 divisors (see below), whose sum is σ = 282217056. Its totient is φ = 72731520.

The previous prime is 145561693. The next prime is 145561727. The reversal of 145561712 is 217165541.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 37193 + ... + 40919.

Almost surely, 2^145561712 is an apocalyptic number.

It is an amenable number.

145561712 is a deficient number, since it is larger than the sum of its proper divisors (136655344).

145561712 is a wasteful number, since it uses less digits than its factorization.

145561712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176 (or 6170 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 145561712 is about 12064.8958553317. The cubic root of 145561712 is about 526.0363047031.

The spelling of 145561712 in words is "one hundred forty-five million, five hundred sixty-one thousand, seven hundred twelve".