145661534 has 8 divisors (see below), whose sum is σ = 222074328. Its totient is φ = 71636760.

The previous prime is 145661531. The next prime is 145661557. The reversal of 145661534 is 435166541.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145661494 and 145661503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145661531) 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, 596852 + ... + 597095.

It is an arithmetic number, because the mean of its divisors is an integer number (27759291).

Almost surely, 2^145661534 is an apocalyptic number.

145661534 is a deficient number, since it is larger than the sum of its proper divisors (76412794).

145661534 is a wasteful number, since it uses less digits than its factorization.

145661534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194010.

The product of its digits is 43200, while the sum is 35.

The square root of 145661534 is about 12069.0320241517. The cubic root of 145661534 is about 526.1565240396.

The spelling of 145661534 in words is "one hundred forty-five million, six hundred sixty-one thousand, five hundred thirty-four".