145074881 has 8 divisors (see below), whose sum is σ = 166272384. Its totient is φ = 123995520.

The previous prime is 145074829. The next prime is 145074883. The reversal of 145074881 is 188470541.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145074881 is a prime.

It is a super-2 number, since 2×145074881² = 42093442194328322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145074883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26885 + ... + 31826.

It is an arithmetic number, because the mean of its divisors is an integer number (20784048).

Almost surely, 2^145074881 is an apocalyptic number.

It is an amenable number.

145074881 is a deficient number, since it is larger than the sum of its proper divisors (21197503).

145074881 is an equidigital number, since it uses as much as digits as its factorization.

145074881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59071.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 145074881 is about 12044.7034417623. The cubic root of 145074881 is about 525.4492070686.

The spelling of 145074881 in words is "one hundred forty-five million, seventy-four thousand, eight hundred eighty-one".