145953274 has 4 divisors (see below), whose sum is σ = 218929914. Its totient is φ = 72976636.

The previous prime is 145953263. The next prime is 145953293. The reversal of 145953274 is 472359541.

It is a happy number.

145953274 is digitally balanced in base 2, 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: 472359541 = 47 ⋅10050203.

It can be written as a sum of positive squares in only one way, i.e., 127848249 + 18105025 = 11307^2 + 4255^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36488317 + ... + 36488320.

Almost surely, 2^145953274 is an apocalyptic number.

145953274 is a deficient number, since it is larger than the sum of its proper divisors (72976640).

145953274 is an equidigital number, since it uses as much as digits as its factorization.

145953274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72976639.

The product of its digits is 151200, while the sum is 40.

The square root of 145953274 is about 12081.1122832296. The cubic root of 145953274 is about 526.5075628110.

The spelling of 145953274 in words is "one hundred forty-five million, nine hundred fifty-three thousand, two hundred seventy-four".