145921027 has 8 divisors (see below), whose sum is σ = 168386816. Its totient is φ = 123860232.

The previous prime is 145921021. The next prime is 145921037. The reversal of 145921027 is 720129541.

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

It is a cyclic number.

It is not a de Polignac number, because 145921027 - 2⁷ = 145920899 is a prime.

It is a super-2 number, since 2×145921027² = 42585892241469458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145921027.

It is not an unprimeable number, because it can be changed into a prime (145921021) 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, 100473 + ... + 101914.

It is an arithmetic number, because the mean of its divisors is an integer number (21048352).

Almost surely, 2^145921027 is an apocalyptic number.

145921027 is a deficient number, since it is larger than the sum of its proper divisors (22465789).

145921027 is a wasteful number, since it uses less digits than its factorization.

145921027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202497.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 145921027 is about 12079.7776055687. Note that the first 3 decimals coincide. The cubic root of 145921027 is about 526.4687843274.

The spelling of 145921027 in words is "one hundred forty-five million, nine hundred twenty-one thousand, twenty-seven".