145772162 has 4 divisors (see below), whose sum is σ = 218658246. Its totient is φ = 72886080.

The previous prime is 145772141. The next prime is 145772171. The reversal of 145772162 is 261277541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 261277541 = 7 ⋅37325363.

It can be written as a sum of positive squares in only one way, i.e., 117267241 + 28504921 = 10829^2 + 5339^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36443039 + ... + 36443042.

Almost surely, 2^145772162 is an apocalyptic number.

145772162 is a deficient number, since it is larger than the sum of its proper divisors (72886084).

145772162 is an equidigital number, since it uses as much as digits as its factorization.

145772162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72886083.

The product of its digits is 23520, while the sum is 35.

The square root of 145772162 is about 12073.6142890188. The cubic root of 145772162 is about 526.2896932952.

The spelling of 145772162 in words is "one hundred forty-five million, seven hundred seventy-two thousand, one hundred sixty-two".