145706261 has 8 divisors (see below), whose sum is σ = 148060800. Its totient is φ = 143367840.

The previous prime is 145706221. The next prime is 145706273. The reversal of 145706261 is 162607541.

145706261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145706261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145706221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14900 + ... + 22658.

It is an arithmetic number, because the mean of its divisors is an integer number (18507600).

Almost surely, 2^145706261 is an apocalyptic number.

It is an amenable number.

145706261 is a deficient number, since it is larger than the sum of its proper divisors (2354539).

145706261 is an equidigital number, since it uses as much as digits as its factorization.

145706261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8059.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 145706261 is about 12070.8848474335. The cubic root of 145706261 is about 526.2103726064.

The spelling of 145706261 in words is "one hundred forty-five million, seven hundred six thousand, two hundred sixty-one".