145777402 has 8 divisors (see below), whose sum is σ = 219139776. Its totient is φ = 72730812.

The previous prime is 145777369. The next prime is 145777451. The reversal of 145777402 is 204777541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77788 + ... + 79639.

It is an arithmetic number, because the mean of its divisors is an integer number (27392472).

Almost surely, 2^145777402 is an apocalyptic number.

145777402 is a deficient number, since it is larger than the sum of its proper divisors (73362374).

145777402 is a wasteful number, since it uses less digits than its factorization.

145777402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157892.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 145777402 is about 12073.8312891973. The cubic root of 145777402 is about 526.2959993117.

The spelling of 145777402 in words is "one hundred forty-five million, seven hundred seventy-seven thousand, four hundred two".