145167778 has 8 divisors (see below), whose sum is σ = 248859072. Its totient is φ = 62214756.

The previous prime is 145167773. The next prime is 145167787. The reversal of 145167778 is 877761541.

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

It is not an unprimeable number, because it can be changed into a prime (145167773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5184550 + ... + 5184577.

It is an arithmetic number, because the mean of its divisors is an integer number (31107384).

Almost surely, 2^145167778 is an apocalyptic number.

145167778 is a deficient number, since it is larger than the sum of its proper divisors (103691294).

145167778 is a wasteful number, since it uses less digits than its factorization.

145167778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369136.

The product of its digits is 329280, while the sum is 46.

The square root of 145167778 is about 12048.5591669710. The cubic root of 145167778 is about 525.5613382188.

The spelling of 145167778 in words is "one hundred forty-five million, one hundred sixty-seven thousand, seven hundred seventy-eight".