145717756 has 12 divisors (see below), whose sum is σ = 255140368. Its totient is φ = 72820512.

The previous prime is 145717753. The next prime is 145717757. The reversal of 145717756 is 657717541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145717753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25 + ... + 17071.

Almost surely, 2^145717756 is an apocalyptic number.

It is an amenable number.

145717756 is a deficient number, since it is larger than the sum of its proper divisors (109422612).

145717756 is a wasteful number, since it uses less digits than its factorization.

145717756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19188 (or 19186 counting only the distinct ones).

The product of its digits is 205800, while the sum is 43.

The square root of 145717756 is about 12071.3609837499. The cubic root of 145717756 is about 526.2242101018.

The spelling of 145717756 in words is "one hundred forty-five million, seven hundred seventeen thousand, seven hundred fifty-six".