145046656 has 16 divisors (see below), whose sum is σ = 288960390. Its totient is φ = 72523264.

The previous prime is 145046651. The next prime is 145046677. The reversal of 145046656 is 656640541.

It can be written as a sum of positive squares in only one way, i.e., 143041600 + 2005056 = 11960^2 + 1416^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (145046651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566461 + ... + 566716.

Almost surely, 2^145046656 is an apocalyptic number.

145046656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145046656 is a deficient number, since it is larger than the sum of its proper divisors (143913734).

145046656 is an equidigital number, since it uses as much as digits as its factorization.

145046656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133191 (or 1133179 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 145046656 is about 12043.5317079335. The cubic root of 145046656 is about 525.4151286541.

The spelling of 145046656 in words is "one hundred forty-five million, forty-six thousand, six hundred fifty-six".