145740722 has 4 divisors (see below), whose sum is σ = 218611086. Its totient is φ = 72870360.

The previous prime is 145740713. The next prime is 145740731. The reversal of 145740722 is 227047541.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (145740713) and next prime (145740731).

It can be written as a sum of positive squares in only one way, i.e., 141824281 + 3916441 = 11909^2 + 1979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36435179 + ... + 36435182.

Almost surely, 2^145740722 is an apocalyptic number.

145740722 is a deficient number, since it is larger than the sum of its proper divisors (72870364).

145740722 is an equidigital number, since it uses as much as digits as its factorization.

145740722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72870363.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 145740722 is about 12072.3122060358. The cubic root of 145740722 is about 526.2518540227.

The spelling of 145740722 in words is "one hundred forty-five million, seven hundred forty thousand, seven hundred twenty-two".