145366251 has 8 divisors (see below), whose sum is σ = 195537360. Its totient is φ = 96052992.

The previous prime is 145366231. The next prime is 145366259. The reversal of 145366251 is 152663541.

145366251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145366251 - 2⁵ = 145366219 is a prime.

It is a super-2 number, since 2×145366251² = 42262693859590002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145366259) 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, 214066 + ... + 214743.

It is an arithmetic number, because the mean of its divisors is an integer number (24442170).

Almost surely, 2^145366251 is an apocalyptic number.

145366251 is a deficient number, since it is larger than the sum of its proper divisors (50171109).

145366251 is a wasteful number, since it uses less digits than its factorization.

145366251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428925.

The product of its digits is 21600, while the sum is 33.

The square root of 145366251 is about 12056.7927327295. The cubic root of 145366251 is about 525.8007445013.

The spelling of 145366251 in words is "one hundred forty-five million, three hundred sixty-six thousand, two hundred fifty-one".