145961756 has 12 divisors (see below), whose sum is σ = 264241320. Its totient is φ = 70464240.

The previous prime is 145961731. The next prime is 145961789. The reversal of 145961756 is 657169541.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629030 + ... + 629261.

It is an arithmetic number, because the mean of its divisors is an integer number (22020110).

Almost surely, 2^145961756 is an apocalyptic number.

It is an amenable number.

145961756 is a deficient number, since it is larger than the sum of its proper divisors (118279564).

145961756 is a wasteful number, since it uses less digits than its factorization.

145961756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258324 (or 1258322 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 145961756 is about 12081.4633219656. The cubic root of 145961756 is about 526.5177618528.

The spelling of 145961756 in words is "one hundred forty-five million, nine hundred sixty-one thousand, seven hundred fifty-six".