145572694 has 4 divisors (see below), whose sum is σ = 218359044. Its totient is φ = 72786346.

The previous prime is 145572671. The next prime is 145572697. The reversal of 145572694 is 496275541.

145572694 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 496275541 = 569 ⋅872189.

It is a self number, because there is not a number n which added to its sum of digits gives 145572694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145572697) by changing a digit.

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 as a sum of consecutive naturals, namely, 36393172 + ... + 36393175.

It is an arithmetic number, because the mean of its divisors is an integer number (54589761).

Almost surely, 2^145572694 is an apocalyptic number.

145572694 is a deficient number, since it is larger than the sum of its proper divisors (72786350).

145572694 is an equidigital number, since it uses as much as digits as its factorization.

145572694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72786349.

The product of its digits is 302400, while the sum is 43.

The square root of 145572694 is about 12065.3509687866. The cubic root of 145572694 is about 526.0495334232.

The spelling of 145572694 in words is "one hundred forty-five million, five hundred seventy-two thousand, six hundred ninety-four".