145080742 has 4 divisors (see below), whose sum is σ = 217621116. Its totient is φ = 72540370.

The previous prime is 145080739. The next prime is 145080773. The reversal of 145080742 is 247080541.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36270184 + ... + 36270187.

It is an arithmetic number, because the mean of its divisors is an integer number (54405279).

Almost surely, 2^145080742 is an apocalyptic number.

145080742 is a deficient number, since it is larger than the sum of its proper divisors (72540374).

145080742 is an equidigital number, since it uses as much as digits as its factorization.

145080742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72540373.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 145080742 is about 12044.9467412687. The cubic root of 145080742 is about 525.4562829922.

The spelling of 145080742 in words is "one hundred forty-five million, eighty thousand, seven hundred forty-two".