145661414 has 8 divisors (see below), whose sum is σ = 220087368. Its totient is φ = 72298960.

The previous prime is 145661401. The next prime is 145661419. The reversal of 145661414 is 414166541.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145661419) 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, 265532 + ... + 266079.

It is an arithmetic number, because the mean of its divisors is an integer number (27510921).

Almost surely, 2^145661414 is an apocalyptic number.

145661414 is a deficient number, since it is larger than the sum of its proper divisors (74425954).

145661414 is a wasteful number, since it uses less digits than its factorization.

145661414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531750.

The product of its digits is 11520, while the sum is 32.

The square root of 145661414 is about 12069.0270527495. The cubic root of 145661414 is about 526.1563795521.

The spelling of 145661414 in words is "one hundred forty-five million, six hundred sixty-one thousand, four hundred fourteen".