145661046 has 16 divisors (see below), whose sum is σ = 296098608. Its totient is φ = 47757600.

The previous prime is 145661041. The next prime is 145661053. The reversal of 145661046 is 640166541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145660998 and 145661016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145661041) 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, 198625 + ... + 199356.

It is an arithmetic number, because the mean of its divisors is an integer number (18506163).

Almost surely, 2^145661046 is an apocalyptic number.

145661046 is an abundant number, since it is smaller than the sum of its proper divisors (150437562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145661046 is a wasteful number, since it uses less digits than its factorization.

145661046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398047.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 145661046 is about 12069.0118071033. The cubic root of 145661046 is about 526.1559364567.

The spelling of 145661046 in words is "one hundred forty-five million, six hundred sixty-one thousand, forty-six".