145664762 has 4 divisors (see below), whose sum is σ = 218497146. Its totient is φ = 72832380.

The previous prime is 145664747. The next prime is 145664801. The reversal of 145664762 is 267466541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 267466541 = 193 ⋅1385837.

It can be written as a sum of positive squares in only one way, i.e., 129254161 + 16410601 = 11369^2 + 4051^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36416189 + ... + 36416192.

Almost surely, 2^145664762 is an apocalyptic number.

145664762 is a deficient number, since it is larger than the sum of its proper divisors (72832384).

145664762 is an equidigital number, since it uses as much as digits as its factorization.

145664762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72832383.

The product of its digits is 241920, while the sum is 41.

The square root of 145664762 is about 12069.1657541025. The cubic root of 145664762 is about 526.1604107228.

The spelling of 145664762 in words is "one hundred forty-five million, six hundred sixty-four thousand, seven hundred sixty-two".