145713994 has 16 divisors (see below), whose sum is σ = 222760296. Its totient is φ = 71467200.

The previous prime is 145713989. The next prime is 145714001. The reversal of 145713994 is 499317541.

It can be written as a sum of positive squares in 4 ways, for example, as 6827769 + 138886225 = 2613^2 + 11785^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145713994.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49944 + ... + 52780.

Almost surely, 2^145713994 is an apocalyptic number.

145713994 is a deficient number, since it is larger than the sum of its proper divisors (77046302).

145713994 is a wasteful number, since it uses less digits than its factorization.

145713994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321.

The product of its digits is 136080, while the sum is 43.

The square root of 145713994 is about 12071.2051593865. The cubic root of 145713994 is about 526.2196815471.

It can be divided in two parts, 1457 and 13994, that added together give a palindrome (15451).

The spelling of 145713994 in words is "one hundred forty-five million, seven hundred thirteen thousand, nine hundred ninety-four".